NAME:three direct links Pressure levels:SCH10,SCH20,STD STANDARD:GB,DIN,ASTM SIZE; ... "(DN15--DN600); welded fittings,6"-48"(DN150-DN1200)StandardASME,ANSI,API,JIS,JPI,DIN,BSOD:1/2"-48"Wall thickness SCH10S ... conformity rate of ex-factory inspection of products. three direct links