... years experience,OEM manafacturer 3.Material:rubber ring and steel Pipe expansion joint : 1:Function Borrowing advanced technologies from abroad,the ... body,Gland,Limited short pipe.Carbon steel,Quality carbon steel,Nodular cast iron,Stainless steel.Q235-A,20,35,45,QT400 ... rubber codestadard No.applicable mediumWAHG/T3091-2000cold drinking water bellow 50°cWCHG/T3091-2000Sea water,frensh water,domestiv ...