bids are invited for cleaning of residential and non residential public building pvcrcc of all sizes water tank in donimalai township without tamperingbreaking any of materials fittings and to be carried out as per instructions of engineerinch.. , custom bid for services - providing and fixing gi union in existing gi pipe line cutting and threading the pipe and making long screws including excavation refilling the earth or cutting of wall and making good the same complete wherever required 2.. , custom bid for services - providing and fixing ball valve brass of approved quality high or low pressure with plastic floats complete 15 mm nominal borefor 100 numbers , custom bid for services - providing and fixing cp brass extension nipple size 15mmx50mm for pvc 500 litre water tank including nuts washer leakage proof joints etc of approved make and quality as per direction of engineerincharge for 100 numbers