... AND aging resistance 3.easy installation AND longer working life. FRP PIPE FITTINGS: 1.light weight 2.anti-corrosion AND aging resistance ... 3.easy installation AND longer working life.FRP PIPE FITTINGS:Our pipe fittings include 450 elbow, 900 elbow, tee, cross, flange ... Y-type pipe, adapter pipe, and so on. Some pipe fittings could be processed live, such as elbow, triplet, cross, and ...