... to 400mm Zhejiang XINDA plastic pipe company is a leading professional manufacturer in producing HDPE FITTINGS for more than 10 years ... ,our fittings including Electrofusion Fittings,Butt fusion Fitting,Socket Joint Fitting,PE Ball ValvesFittings,PE/Steel Transition Fittings, ... as blew,. Our fty produce various kinds of pipe fittings according to customers require