• This paper describes the structure and basic operating principle about the squeezed ma - chine of core of the long cylinder of main oil pipe of Cat, 121 diesel engine's body.

    本文介绍了卡特匹勒121型柴油机机体油管圆柱挤压结构基本工作原理

    youdao

  • This paper describes the structure and basic operating principle about the squeezed ma - chine of core of the long cylinder of main oil pipe of Cat, 121 diesel engine's body.

    本文介绍了卡特匹勒121型柴油机机体油管圆柱挤压结构基本工作原理

    youdao

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