... , ASTM,,JIS , DIN , EN,MaterialCarbon steel, alloy steel, stainless steel ConnectionButt-welding,forged fittingApplications rangsuch as oil, chemical ... fittings, wear-resistant pipe fittings, and supporting pipes for four major pipeline factories. With a variety of ... compensators with the material of carbon steel, alloy steel and stainless steel.Our company has advanced production equipment, ...