Hiwa Fittings, the professional pipe fittings produce dept., which belong to Huihua Valve Co Ltd --- The CE,WRAS and SGS ISO9001 Approved Valve and Fittings Manufacturers in China. Our main line as the following: Ductile Iron Fittings:*niversal Coupling*niversal Flange Adaptor*estrained Flange Adaptor & Coupling for PE/PVE Pipes-----New Products*niversal Flange Adaptor ,Universal Coupling*estrained Flange Adaptor and Coupling for PE Pipe*edicated Flange Adaptor and Coupling for DI/STEEL Pipe*uick Flange Adaptor for PVC/PE Pipes*addle Clamp*epair Clamp*ismantling Joint.*S EN545, ISO2531 Ductile Iron Fittings.*oose Flange DI Pipe Fittings*uctile Iron Fittings for Upvc pipes.*ubber Expansion JointHuihua are always enlarging, in the year 2002, we have Zibo Huihua Valve Industry Co. founded in Zibo New&High-tech Industrial Park ,Shandong Province,China, which is functioning perfectly in very aspects. In 2004, 33350 square meters new factory of Huihua is to be built in Xiaozhan Developing District of Southern Tianjin City, 66666.67 square meters new factory of Huiha just in building in Binzhou City, Shandong Province, which shows Huihua are opening a new history . Your requirement is Hiwa's responsibility!Huihua will always welcome you to visit us to realize our mutual benefits.