Name:stainless steel Expansion Joints Processing scope Diameter: 400-1600mm Thickness: 8-20 mm Expansion Joint,bolier's part1.We own Asian unique production ... used in many fileds,such as petroleum,chemical industry,boiler,pressure vessels,railway transportation,metal structure,water supply facilities and aerospace ... alloy steel,carbon steel,stainless steel,clad plate,etc Steel Expansion Joints