... Iron fitting socket ( Coupling) 1.1/8''-6'' 2 BS,ANSI,DIN Thread Standard 3 Black,Galvanized 4 ISO,SGS,CIQ Cast Iron ... ,blackAs a professional manufacture we supply many kinds of malleable iron pipe fittings: elbows, tees, sockets, bends, nipples, unions, crosses ... Fitting Hydraulic Quick Coupler, size: 1/8'-6' Product ItemMalleable iron pipe fittings: elbows, tees, sockets, bends, nipples, unions, ...