short dated tender - bids are invited for ro plant 500 ltr , ro plant shed , double layered cylindrical water storage tanks 2000 ltr , double layered cylindrical water storage tanks 500 ltr , water tank staging , gi pipe 20 mm dia , tank nipple 20 mm dia , float valve brass 20mm dia , gi nipple 150 mm long , gi socket 20mm dia , gi elbow 20mm dia , gi tee 20mm dia , gi union 20mm dia , bib cock cp brass alloy 20 mm dia , gate valve brass 20 mm dia , 1100 v grade fr pvc , led tube light fittings 20w , pvc rectangular block for mounting switches , switch socket combination 15 obique16 a 5 pin , switch piano type 5 a , pvc casing and capping of size 25 mm , pvc t junction box for pvc casing caping of size 25 mm , elbow pvc for casing and caping 25mm , insulation tape 19mm , mcb db made of steel sheet , mcb spn 32 230 volts , mcb sp 10 230 volts , 32 on load change over switch , voltage stabilizer 3 kva