... takes place of traditional connection ways. The body of outlets is made in excellent Forgings. The material is same ... ,instrument and valve by Butting-welding, socket-welding and thread. TypeConnected typeGB19326 Socket weldedGB19326 Pipe threadGB19326 Butt-weldedStandardSOL (MSS ... ,SCH80,XS,SCH160,XXSMaterial304,304L,316,316L,321,20# Surface Treatment: Shot blasted, black painting, rust-proof oil, ...