... (Previous Year) Pipes and Fittings Water Supply Pipes and Fittings 1,250 Tons / Month,Water Drainage Pipes and Fittings 1,500 Tons / Month ... Pipes and Fittings 1,667 Tons / Month Water Supply Pipes and Fittings 15,000 Tons,Water Drainage Pipes and Fittings 18,000 ... Test Report Tianjin Construction Engineering Quality Test Center Water Supply Pipes and Fittings, X110 2012/05/15 Test Report Tianjin ...