... Weld & Socket Weld & Thread 3)Standard:ASME,ANSI,BS,DIN,JIS,etc. 4)ISO 9001:2008 SO(Slip On) flange Flange ... &G),Male-and-Female (M&F)StandardASME,ANSI,BS,DIN,JIS,etc.Surface Treatment Transparent oil, rust-proof black oil or ... City,Hebei Province,China Factory Certificate Test Equipment Production Equipment jis ss slip on flange