Latest hydroxy naphthol Tenders | Government hydroxy naphthol Tenders

Central Government/Public Sector

CTN :43742572

18 Feb, 2026 11.82 Lacs

Dharamshala - Himachal Pradesh

Tender For supply of sodium sulphate for analysis emparta , iso propyl alcohol for analysis emparta , lithium acetate dihydrate bioxtra , lithium nitrate reagentplus , manganese acetate tetrahydrate , nickel acetate tetrahydrate , nickel sulfate hexahydrate acs reagent , platinum wire auxiliary electrode , sodium hydroxide pellets for analysis , titanium butoxide reagent grade , molybdenum oxide trace metals basis , nickel chloride anhydrous, powder,trace metals basis , potassium chloride trace metals basis , selenium pellets five mm particle size, trace metals basis , selenium powder, hundred mesh, nine trace metals basis , sodium chloride reference material for titrimetry, certified by bam , tungsten oxide powder, trace metals basis , zinc chloride anhydrous, powder, trace metals basis , magnesium nitrate hexahydrate acs reagent , poly vinyl alcohol mw 89,000 98,000, hydrolyzed , tellurium powder, two hundred mesh, trace metals basis , tetra n butyl orthotitanate , ytterbium nitrate pentahydrate trace metals basis , ytterbium powder, trace rare earth metals basis , iron oxide powder, greater than five , niobiumoxide trace metals basis , platinum paste, screen printable , polyvinyl butyral powder , praseodymium oxide trace metals basis , samarium oxide , silver conductive paste , yttria stabilized zirconia submicron powder trace metals basis , manganese chloride tetrahydrate bioreagent, suitable for insect cell culture , nickel chloride hexahydrate, , nitric acid emparta , polycaprolactone average mn fourty five thousand , potassium phosphate dibasic reagent grade, , potassium phosphate dibasic trihydrate reagentplus , sodium chloride acs reagent, , sodium hydroxide solution c naoh 1 mol 1 n as per specification , sodium hydroxide , strontium carbonate , triethyl phosphate for synthesis , tris hydroxymethylaminomethane , crystalline, acs reagent , ) /bid number: gem/2026/b/7158468 * /dated: 28-01-2026 & & / bid document1 / 67 & & ' ' /item categoryzinc acetate dihydrate, acs reagent, , zinc chloride reagent grade, , zinc nitrate hexahydrate reagent grade, , barium oxide trace metals basis , calcium oxide reagentplus trace metals basis , cobalt oxide nanopowder fifty nm particle size sem 9 trace metals basis , 1 ethyl 33 dimethylaminopropyl carbodiimide , copper sulfate pentahydrate bioreagent, suitable for cell culture, , dextran enzymatic synth , diethylenetriamine , liquid, suitable for synthesis, reagentplus , folic acid , iron chloride tetrahydrate, , ag agcl 3m kcl reference electrode , ammonium dihydrogenphosphate trace metals basis, 25gm , citric acid for analysis emparta , cobalt sulfate heptahydrate reagentplus , copper sulfate pentahydrate bioreagent, suitable for cell culture , ethanol absolute for analysis emsure acs,iso,reag. ph eur , ethylene glycol, certified reference material , ferrous chloride , ammonium hydroxide solution for analysis , buffer hf improved , calcium gluconate european pharmacopoeia reference standard , iron chloride anhydrous, powder, trace metals basis , ferric nitrate nonahydrate acs reagent , gadolinium nitrate hexahydrate trace metals basis , germanium, trace metal basis, powder , 2 propanol for analysis emparta , acetic acid for analysis emparta , acetone emplura , calcium chloride anhydrous, powder , calcium nitrate tetrahydrate , chromium chloride hexahydrate, rt, solid, purum p. a , citric acid acs reagent grade, crystals , hydrochloric acid abount for analysis , iron chloride tetrahydrate reagentplus , iron chloride hexahydrate, reagent grade, chunks , poly methyl methacrylate average mw 350,000 by gpc , iron nitrate nonahydrate acs reagent, , methanol for analysis emparta , n hydroxysuccinimide , nickel sulfate hexahydrate acs reagent, , p benzoquinone reagent grade, powder or crystals , potassium hydroxide pellets for analysis , rhodamine b base dye content , neodymium oxide sodium sulphate for analysis emparta, iso propyl alcohol for analysis emparta, lithium acetate dihydra

Central Government/Public Sector

CTN :43742924

18 Feb, 2026 NA

Varanasi - Uttar Pradesh

Tender For supply of 10x tae , tri2 pyridyl s triazine , propanol , nitrophenyl beta d lucuronide , absolute ethanol , abts , acetic acid , acetic anhydride , acetocaramine , acetone , acetone ar grade , acetone hplc grade , acetonitrile hplc grade , acetonitrile lcms grade , alpha amylase , alpha glucosidase , aluminium chloride , ammonium cobalt sulphate , ammonium formate 99percent 1 kg , ammonium hydroxide , anhydrous sodium sulphate , arabic gum , ascorbic acid , betaine , boric acid , bromocresol green , calcium carbonate , calcium chloride anhydrous , calcium oxalate , carboxy methyl cellulose , chlorine chloride , chloroform hplc grade , citric acid , collagenase , copper sulphate , ctab extraction buffer , dextrin , diclofenac sodium , diethyl ether , dinitro salicylic acid , dl- menthol , dmso , dpph , d-sorbitol , ethylenediaminetetraacetic acid, edta , elafin , elastase enzyme , ethanol hplc grade , ethyl acetate hplc , ethylene glycol , falgpa n 3 2 furyl acryloyl leu gly pro ala , fehling a , fehling b , ferric chloride , ferric sulfate , ferrous sulphate , folin ciocalteu reagent , formic acid 99 percentlcms grade , fructo oligo saccharide , fructose , glacial acetic acid , glucose , glycerol , glycerol food grade , griess reagent , hydrochloric acid , inulin extrapure , iodine crystal , iron chloride , isoamyl alcohol , lactic acid , levulinic acid , magnesium carbonate , magnesium oxide , malandialdehyde , maltodextrin , melandialdehyde , mercuric chloride , metaphosphoric acid , methanol , methanol, lc or ms grade , methyl red , n 2 hydroxyethylpiperazine n 2 ethane sulfonic acid , nacl acs 99. 9 percent , ninhydrin solution , nitric acid , n methoxysuccinyl ala ala pro val p nitroanilide , pectin , perchloric acid , petroleum ether 60-80 c , phenol , phenolphthalein ph indicator solution , phosphate buffer saline , phospomolybdic acid , p nitrophenol palmitate , porcine lipase , potassium ferricyanide , potassium hexacyanoferrate , potassium hydroxide , potassium iodide , potassium metabisulphite , potassium per sulphate , potassium permanganate , potassium sulphate , potasssium dichromate , potato dextrose agar , potato dextrose broth , potato dextrose rose bengal agar , silicon anti foaming agent non ionic 30 percent w w silicon , sodium acetate trihydrate , sodium benzoate , sodium cholate , sodium citrate dihydrate , sodium hydroxide , sodium hypochloride , sodium nitrite , sodium nitroprusside , sodium phosphate dibasic heptahydrate , sodium phosphate monobasic monohydrate , sodium potassium tartarate , sodium sulphite , sodium tetrachloropalladate , starch , sucrose , sulfuric acid , syringe filter 0. 45ul , tes buffer n tris hydroxymethyl methyl 2 aminoethanesulphonic acid , thiobarbituric acid , thymol , tri chloro acetic acid , tris base , tris hcl ph 8. 0 , trolox , urea , water, hplc , whatman 1 , whatman 42 , xylose //bid details2 / 103

CTN :43682357

11 Feb, 2026 NA

Ahmedabad - Gujarat

Tender For supply of marshall reagent , oxalic acid , o cresolphthlein , 1 octane sulphonic acid sodium salt monohydrate 99 , potassium ferricyanide , meta phosphoric acid 56 60 , potassium ferrocyanide , potassium sulfate , potassium bromide , potassium phosphate dibasic anhydrous di potassium hydrogen phosphate anhydrous potassium hydrogen phosphate , potassium dihydrogen ortho phosphate , potassium chloride , potassium carbonate anhydrous 99 , potassium hydroxide pellet , potassium dichromate , potassium bromate , potassium sodium tartrate , potassium permanganate , potassium thiocyanate , phosphorus pentoxide , phloroglucinol 99 1 3 5 trihydroxybenzene , pentafluropropionic acid perfluoropropionic acid , potassium nitrate , phosphotungstic acid tungstophosphoric acid tpa , quinhydrone 97 pbenzoquinhydrone , sodium hydrogen carbonate sodium bicarbonate baking soda , di sodium tartrate dihydrtae , sodium hydroxide pellets , starch soluble , sodium thiosulphate , sodium acetate anhydrous acetic acid sodium salt sodium ethanoate , sodium nitrite , sodium disulfite sodium metabisulfite , sodium chloride , sodium sulphate , di sodium tetraborate borax decahydrate , sodium carbonate anhydrous pure , sodium phosphate monobasic dihydrate sodium dihydrogen orthophosphate , sodium borohydride , sodium phosphate dibasic disodium hydrogen phosphate , sodium lauryl sulphate sodium dodecyl sulfate , thiourea 98 , tetrabutyl ammonium hydrogen sulphatc , l 1 tartaric acid , thioglycollic acid , zinc chloride dry , zinc metal granular , acetone hplc grade , chloroform hplc grade , carbon tetra chloride , dimethylformamide hplc grade , dichloromethane , diethylamine , dimethyl sulphoxide , diethyl ether , ferroin indicator , n propyl alcohol lr , n butanol 99 butyl alcohol , n heptane , ortho phosphoric acid , o cresol , 2 propanol iso propyl alcohol hplc grade , nitromethane , fehling solution b , petroleum ether 100 120c , trifluoroacetic acid , sodium nitroprusside

Central Government/Public Sector

CTN :43695648

13 Feb, 2026 NA

Pune - Maharashtra

Tender For supply of procurement of laboratory and consumable d d - 2 3 5triphenyltetrazolium chloride ttc , acetone , ammonium acetate , ammonium flouride , ammonium molybdate tetrahydrate , ammonium vanadate , antimony potassium tartarate , barium chloride dihydrate , boric acid powder , bromo cresol green , calcium chloride dihydrate , chloroform ethanol free , citric acid monohydrate , concentrated sulphuric acid , concentrated nitric acid , cupric sulfate pentahydrate , davardas alloy , diacetylmonoxime , dimethyl sulphoxide dmso , diphenylamine indicator , diethylenetriaminepentaacetic acid dtpa , edta , ethanol , ferrous ammonium sulphate hexahydarte , fluorescein diacetate , fluorescein sodium salt , glucose , hydrochloric acid , l ascorbic acid , magnesium oxide , maleic acid , methanol , methyl red , n phenylanthranilic acid indicator , orthopohphoric acid , perchloric acid , phenyl mercuric acetate , p nitrophenol , p nitrophenyl phosphate tetrahydrate , p nitrophenyl beta-dglucopyranoside , phenopthalein indicator , potassium chloride , potassium dichromate , potassium phosphate dibasic k2hpo4 , potassium dihydrogen phosphate kh2po4 , potassium permanganate , potassium sulphate , salicylic acid , selenium powder , silver sulphate , sodium bicarbonate , sodium carbonate , sodium fluoride , sodium hexametaphosphate , sodium hydroxide pellets , sodium thiosulfate , thiosemicarbazide , toluene , triethylamine , 1 3 5triphenyltetrazolium formazan , tris hydroxymethyl aminomethane tham , urea , whatmann filter paper no 42 dia 125 mm , whatmann filter paper no 2 dia 125 mm , whatmann filter paper no 1 dia 125 mm

Central Government/Public Sector

CTN :43695747

14 Feb, 2026 NA

Delhi - Delhi

Tender For supply of agar powder , glucose , sodium dihydrogen phosphate , yeast extract , peptone , ammonium sulfate , magnesium sulfate , potassium dihydrogen orthophosphate , calcium chloride dihydrate , hydrogen peroxide disinfectant , pcr amplification kit , pattern making sheet , muslin , poplin , fabric cutting scissors , double sided tape foam 1 inch , double sided tape paper 1 inch , brown tape packing , masking tape , stedllers , fiskars , sketching pad , fevicol medium size bottle , alpin , style tape , measuring tape

CTN :43322276

30 Jan, 2026 NA

Bathinda - Punjab

Tender For corrigendum : supply of lab chemicals d d - universal indicator 0 14 ph , edta na , eriochrome black t indicator , petroleum ether , ortho toludine , murexide indicator , oxalic acid , sodium hexaflurosilicate , 1 amino 2 napthol 4 suolhonic acid , sodium sulfite , sodium bisulfite , methanol , n heptane , hydroxylamine , bromophenol blue , metaphenylenediamine hydrochloride , cupric suphate pentahydrate , potassium sodium tartarate , lead acetate , disodium hydrogen phosphate dodecahydrate , potassium oxalate , methylene blue , bakers yeast , silica gel hot descicators , aluminium foil , thynolpthalin indicator , ph indicator paper ph 2 to 4.5 , ph indicator paper ph 1 to 14 , nh3 solution , metol , na2s2o5 , citric acid , 1 5 diphenyl carbazide , phosphoric acid , sodium bisulfate , sodium sulfate , sodium citrate , ammonium acetate , hydroxyl amine hydrochloride , 1 10 phenantholine , dithizone , manganese sulfate , potassium biodate , zinc metel , tetrachloromethane , n hexane , potassium chloroplatinate , cobaltous chloride , seed culture bod , penicillin , actidione hexamide , ypd growth agar , yeast extract powder , nutrient agar , potato dextrose agar , agar agar powder , formaldehyde , iodine crystal , hydroxy naphthol blue , glutamic acid , bromocresol green ar grade , arsenious trioxide ar grade , 3,5 dinitro salicylic acid , sodium potassium tartrate , phenol , sodium metabisulphite , sodium hydroxide pellets , whatman filter paper no. 1 , 1 propanol , 1 butanol , 2 butanol , isobutanol , active amyl alcohol , isoamyl alcohol , 3 pentanol , sodium carbonate , sodium hydrogen carbonate , nitric acid , dibenzothiophene , isoocatane , low sulphur calibration standards 1 ppm to 80 ppm , anolyte for coulometric karl fischer titration methanol based , methanol for coulometer , water 0.1 percent standard for coulometer , multielement standard for icp 1000 ppm , internal standard for icp yittrium , sodium hydrogen sulphite , ammonium hydroxide , ammonium purpurate , mercuric thiocynate , hydrofluoric acid , sodium meta silicate na2sio3.9h2o , potassium permangnate

State Government

CTN :43430190

31 Jan, 2026 2.40 Lacs

Kannur - Kerala

Tender For corrigendum : supply of lab items - test tube 15x150mm, volumetric flask 100ml, conical flask 250ml, watch glass 50mm, watch glass 75mm, pipette volumetric 20ml, burette 50ml, spatula plastc 6", test tube brush, burette stand with clamp, filter ppaer sheet, weighing machine elctronic, beaker 1000ml, atomic model junior set, sulphuric acid 500ml, hydrochloric acid 500ml, nitric acid 500ml, zinc sulfate 500 gm, lead acetate 500gm, lead nitrate 500gm, zinc nitrate 500gm, ammonium chloride 500gm, barium chloride 500gm, sodium hydroxide 500gm, ammonium carbonate 500gm, ammonium acetate 500gm, disodium hydrogen phosphate 500gm, neutral ferric chloride 125ml, silver nitrate n/10 125ml, potassium chromate 500gm, ferric chloride 500gm, spherometer, vernier calippers, screw guage 20mm, meter scale 1meter, prism 50mm, stop watch digital, convex lens fl 10 50mm, convex mirror fl 15 50mm, concave mirror fl 15 50mm, concave lens fl 20 50mm, simple pendulum complete set, diode various type, bread board for diode, zener diode, rheostat 1.8 amps (100 ohms), ammeter, voltmeter, connecting wire 100gm, nichrome wire 100gm, slotted weight 50gx5, lamp box, lens screen, lens stand, student microscope us 33rp, biuret reagent 125ml, glucose 500gm, fehlings solution a 500ml, fehlings solution b 500ml, iodine solution n/10 500ml, blood lancet, cotton absorbant 400gm, hand wash 500ml, starch 500gm, tooth pick, methylene blue 125ml, sulpho salicylic acid (20%) 125ml, iso spirit 400ml, eye model, test tube 15x150mm, filter ppaer packet, petri dish 15x125mm, watch glass 75mm, dwaring brush, cover slip square 18x18mm, cover slip 18x18mm, dissection needle, micro slide (50 nos), formaldehyde 1ltr, spatula plastc, filter paper sheet, laser torch, connecting wire 100gm, zinc plate, copper plate, atomic model junior set, sand paper, test tube holder, phenolthalein 125 ml, methyl orange 125ml, potassium permanganate 500gm, calcium chloride 500gm, copper sulphate 500gm, sulphuric acid 500ml, hydrochloric acid 500ml, sodium metal 100gm, ammonia solution 500ml, barium chloride 500gm, sodium hydroxide 500gm, lead acetate 500gm, silver nitrate n/10 125ml, simple pendulum complete set, slinky, laser torch, solenoid model plastic, newtons disc, ring magnet 5cm, bar magnet 5cm, horse shoe magnet 5cm, magnetic compass 50mm, stop watch digital, gold leaf electroscope, periscope wooden, newtons cradle, glass slab, measuring tape, electric motor model, tuning fork spare, student microscope us 33rp, micro slide (50 nos), dissection needle, methyl orange 125ml, cover slip square 18x18mm, glucometer, digital bp apparatus, clinical thermometer, stethoscope

Central Government And Public Sector

CTN :43581812

05 Feb, 2026 7.11 Lacs

Papumpare - Arunachal Pradesh

Tender For tender for supply of chemical and glassware f f - bod bottle 300 ml , glass beaker 25ml , conical flusk 100ml , glass dropper 2ml , measuring cylinder 50ml , plastic beaker 25 ml , glass reagent bottle 1000 ml , glass reagent bottle 500 ml , reagent bottle narrow mouth (polyethylene) 500 ml , water sample bottle narrow 1000 ml , hand gloves nitrile , glass rod , funnel medium size diameter 75 mm , watch glass medium size 100 mm , vacuum filtration assembly with suction 1000 ml , measuring cylinder 100 ml , ammonium hydroxide 500 ml , ammonium chloride 500 gm , bromocresol green indicator 125 ml , calcium chloride (anhydrous) 500 gm , calcium chloride (fused) 500 gm , eriochrome black t 100 gm , ethylene diamine tetra acetic acid sodium salt (edta) 500 gm , ferric chloride hexa-hydrate 500gm , glucose (ar grade) 500gm , glutamic acid 250gm , potassium iodide 500 gm , starch 500 gm , salicylic acid 500 gm , potassium hydroxide 500 gm , sodium iodide 250 gm , manganese(ii) sulfate (monohydrate) purified 500 gm , sodium thiosulfate pentahydrate 500 gm. , di-sodium hydrogen phosphate heptahydrate 500 gm , manganese sulfate heptahydrate 500 gm , murexide (ammonium purpurate) 50 gm , methyl red 125 ml , phenolphthalein indicator 125 ml , sodium hydroxide 500 gm , tisab-iii(for fluride) 475 ml , sodium azide 100 gm , nitrate isa 475 ml

State Government

CTN :43583158

04 Feb, 2026 NA

Lucknow - Uttar Pradesh

Tender For supply of 4-aminoantipyrine reagent , agar powder , ammonium molybdate , ammonium persulfate , ammonium solution , barium sulphate , benzene iso butanol , buffer solution 4 ph , buffer solution 7 ph , calcium phosphate , cod standard solution , crystal violet , erichrome black-t , ferrous ammonium sulfate , glucose , grams iodine , hexamethylenediamine tetraethyl , hydrazine sulphate , hydrogen peroxide , iodine solution , macconkey broth , manganese sulfate , manganous sulfate , mercuric sulphate , mix indicator , nesslers reagent , nitroblue tetrazolium chloride , phenol pure , phosphate buffer , potassium chloride , potassium dichromate , potassium ferricyanide , potassium iodide , potassium persulphate , potato dextrose agar , silver nitrate , silver sulphate , sodium azide , sodium carbonate , sodium dihydrogen phosphate , sodium hydrogen carbonate , sodium hydrogen phosphate , sodium hydroxide pellets , sodium tetraborate , sodium tetrachloromercurate , sodium thiosulphate , stannous chloride , starch indicator , sulfamic acid , tetrazolium salt , thio barbituric acid , yeast extract , zinc acetate , cod digestion tube , kjeldahl flask , ph probe , micro separations glass microfiber filter , micro separations ptfe membrane filter , pipette fillers , nitrile gloves ) /bid number : gem/2026/b/7111516 * /dated: 14-01-2026 & & / bid document 1 / 44

Central Government And Public Sector

CTN :43521996

30 Jan, 2026 NA

Kota - Rajasthan

Tender For tender for supply of lab chemicals and glasswares d d - ph 4 buffer solution (ar grade) , ph 7 buffer solution (ar grade) , ph 10 buffer solution (ar grade) , pottasium chloride (ar grade) , hydrazine sulphate (ar grade) , hexamethylene tetramine (ar grade) , sodium thiosulphate (hypo) (ar grade) , manganous sulfate (ar grade) , sulphuric acid (ar grade) , sodium hydroixe (ar grade) , potassium iodide (ar grade) , sodium azide (ar grade) , starch (ar grade) , potassium dichromate (ar grade) , ferric chloride (ar grade) , calcium chloride (anhydrous) (ar grade) , disodium hydrogen phosphate (ar grade) , monopotassium phosphate (kh2po4)(ar grade) , dipotassium phosphate (ar grade) , magnesium sulphate (mgso4.7h2o) (ar grade) , ferrous ammonium sulphate , ferroin indicator (ar grade) , sodium carbonate (ar grade) , phenolphthalein indicator (ar grade) , methyl orange / bromocreso l green indicator (ar grade) , potassium chromate (ar grade) , sodium chloride (ar grade) , sulfanil amide (ar grade) , sodium nitrite (ar grade) , chloroform (ar grade) , phosphoric acid (ar grade) , n (1 naphthyl) ethylenediamine dihydrochloride (ar grade) , sodium oxalate (ar grade) , potassium permanganate (ar grade) , sodium hydroxide (ar grade) , ammonium chloride (ar grade) , sulfamic acid (ar grade) , boric acid h3bo3 (ar grade) , sodium fluoride (ar grade) , cdta (ar grade) , glacial acetic acid (ar grade) , potassium antimonyl tartrate (ar grade) , ammonium molybdate (ar grade) , ascorbic acid (ar grade) , pottasium dihudrogen phospate (anhydrous) (ar grade) , magnesium chloride (ar grade) , sodium acetate (ar grade) , sodium sulphate (anhydrous) (ar grade) , potassium nitrate acetic acid (ar grade) , acetic acid (ar grade) , barium chloride crystals (ar grade) , edta disodium salt (ar grade) , hydrochloric acid (ar grade) , murexide (ar grade) , eriochrome black t indicator (ar grade) , ammonium hydroxide (ar grade) , calcium carbonate (anhydrous) (ar grade) , magnesium salt of edta (ar grade) , methyl red indicator (ar grade) , oxalic acid (ar grade) , curcumin (ar grade) , ethanol (ar grade) , filter paper whatman no. 41 , thermometer (nabl certified) , 50 ml glass burette (borosil) , 100 ml pipette (borosil) , 50 ml pipette (borosil) , 25 ml pipette (borosil) , 10ml pipette (borosil) , 5ml pipette (borosil) , 2ml pipette (borosil) , 1ml pipette (borosil) , pipette bulb (small size) (borosil) , pipette bulb (small size) (borosil) , spatula (borosil) , 25 ml volumetric flask (borosil) , 50 ml volumetric flask (borosil) , 100ml volumetric flask (borosil) , 250ml volumetric flask (borosil) , 500ml volumetric flask (borosil) , 1000ml volumetric flask (borosil) , 100 ml conical flask (borosil) , 250 ml conical flask (borosil) , 75 mm funnel (borosil) , 1000ml beaker (borosil) , 500ml beaker (borosil) , 250ml beaker (borosil) , 100ml beaker (borosil) , 50ml beaker (borosil) , 25ml beaker(borosil) , 100ml reagent bottle (borosil) , 250ml reagent bottle (borosil) , 500ml reagent bottle (borosil) , 1000ml reagent bottle (borosil) , 1000ml measuring cylinder (borosil) , 500ml measuring cylinder (borosil) , 100ml measuring cylinder (borosil) , 50ml measuring cylinder (borosil) , 25ml measuring cylinder (borosil) , 100ml evaporating dish (borosil) , 300ml bod bottle (borosil) , 500ml wash bottle (borosil) , magnetic beads (borosil) , pipette stands and clamps(borosil) , watch glass (borosil) , desiccator (borosil) , vaccum pump (borosil)

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