... fitting socket ( Coupling) 1.1/8''-6'' 2 BS,ANSI,DIN Thread Standard 3 Black,Galvanized 4 ISO,SGS,CIQ Cast Iron Pipe Fitting ... plugs, backnuts, crosses over, round caps etc. Cast Iron Pipe Fitting Hydraulic Quick Coupler, size: 1/8'-6' Product ItemMalleable ... Precise angles, Good antirust propertyProduct UsageSuitable for joining pipe lines of team gas oil airMechanical PropertiesTensile Strength>=33kg ...