Buttwelding valves 对焊连接阀 ; 对于焊毗连阀 ; 对焊衔接阀 ; 对焊毗连阀

Buttwelding ends 对接焊端 ; 中文名称对接焊接端

Buttwelding ales 对焊连接阀

Buttwelding E valves 对焊连接阀

Factory-Made Wrought Steel Buttwelding Fittings 工厂制锻钢对焊配件 ; 工厂制造的锻钢对焊管件

Buttwelding vwoulsves 对焊相接阀

Buttwelding vasves 对焊接续阀

Buttwelding U valves 对焊连接阀

Factory-Made Wrought Buttwelding Fittings 工厂制锻钢对焊配件 ; 中文名称工厂制锻钢对焊配件