常用材料
common material
materials used for naval vessels
承压设备常用材料
pressure equipment materials
铜-不锈钢复合材料
Copper-stainless Steel Composites
纸包扁线
flat wire with paper wrapped
不锈钢铝复合材料
Stainless-aluminum composite material
不锈钢多孔材料
stainless steel porous material
不锈钢波螺焊管
stainless steel screwed welded pipes