• Static fracture agent, after all, is one way to break rock and concrete in complicated surroundings and unable blasting condition.

    环境复杂不能情况下,用静态破裂破裂岩石混凝土不失为条捷径

    youdao

  • Static fracture agent, after all, is one way to break rock and concrete in complicated surroundings and unable blasting condition.

    环境复杂不能情况下,用静态破裂破裂岩石混凝土不失为条捷径

    youdao

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