材质：碳钢，合金钢，不锈钢，双相不锈钢，镍基合金，铜合金，钛，复合材料(碳钢复合不锈钢，碳钢复合铜合金，不锈钢复合钛等等)

规格：外径最大5000mm .厚度最大800mm

Materical: Carbon steel,  alloy steel, Stainless Steel,Duplex Stainless Steel,Nickel alloy ,Copper, Titanium,Clad Material (CS+SS,CS+copper alloy, SS+Ti etc)

Size: Outside Diameter Max 5000mm, Thickness Max 800mm