• This paper introduces the structure, composition, working principle and design character of automatical welding device of YSP 15 liquidized petroleum bottle valve base.

    介绍YSP -15型钢瓶瓶阀座自动焊接装置结构组成工作原理设计的主要特点

    youdao

  • This paper introduces the structure, composition, working principle and design character of automatical welding device of YSP 15 liquidized petroleum bottle valve base.

    介绍YSP -15型钢瓶瓶阀座自动焊接装置结构组成工作原理设计的主要特点

    youdao

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