塞式管道不停輸帶壓開孔、管路封堵工程、帶壓焊接三通管件、安裝夾板閥、管路開孔 Hot Tapping、管路盤式封堵阻斷、管道施工作業。Hot Tapping and Stopple Bypass of High Pressure Pipelines, Changed Isolation valve or Pipeline Engineering Services.
14 окт 2024