Tender For supply of 6 inch pvc pipe (in meter) ,6 inch pvc socket ,pvc solvent (500ml) ,3 inch pvc tee ,aggregate 20mm (one tractor trolley) ,fly ash brick ( tractor trolley) ,sand (tractor trolley) include cleanliness (low silt/clay), sharp angular grains, and specific grading zones (i to iv) ,cement bag (50kg) is:269-2015: ordinary portland cement (opc) 33, 43, 53 grade specifications ,level pipe measurement pvc