Hot Tapping and Line Stopping 筒式管道不停輸帶壓開孔封堵
Hot Tapping and Line Stopping 管路不停輸開孔不斷水工法、管路開孔 Hot Tapping、管路阻斷 Pipeline Plugging、管道封堵 Copmletion Plug 施工作業。
Видео Hot Tapping and Line Stopping 筒式管道不停輸帶壓開孔封堵 канала 全豐管道工程有限公司
Видео Hot Tapping and Line Stopping 筒式管道不停輸帶壓開孔封堵 канала 全豐管道工程有限公司
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