... Union Pipe Couplings ISO8434-1;316L,321,Steel DN 6 to 42mm,high pressure Good quality with internation standard ISO9001:2008 Union Pipe ... every year.3.We introduce Solidworkers,SB3DS etc. software for pipe design, to offer pipeline design for our customer.5. ... Retain Ring Flanges, Hydraulic Hose Assembly, Industrial Hose Assembly, Pipes,Pipe Clamps, Test System etc., which are applied in kind of ...