Tender For providing of annual maintenance services for water purification and conditioning system (version 2) - potable water purification system reverse osmosis or uv based; upto 3; package-5 : water purifier and conditioning system maintenance involving basic servicing, ..
Tender For providing of testing of water quality - drinking water; presence of heavy metals (aluminium, antimony, arsenic, beryllium, bismuth, copper, cadmium, lead, mercury, nickel, uranium, tin, vanadium and zinc), electrical conductivity, ph testing, nitrate and phosp..