... experience,OEM manafacturer 3.Material:rubber ring and steel Pipe expansion joint : 1:Function Borrowing advanced technologies from abroad ... body,Gland,Limited short pipe.Carbon steel,Quality carbon steel,Nodular cast iron,Stainless steel.Q235-A,20,35,45,QT400 ... /T3280-1992Bolt,Stud,Power Screw,Nut.Carbon steel,Quality carbon steel,stainless steelQ235A,35,45,00Cr17Ni14Mo2,1Cr18Ni10TiGB/T4237-1992GB/ ...