That can include beams, posts, drain lines, water piping or surface-mounted wires.
包括横梁、柱子、排水管道、供水管道或表面贴装线。
Piping service include fire protection piping, chilled process piping, hot water pipings, steam piping, hot vacuum piping, cold vacuum piping. drain water, city water piping etc.
管道工作包含消防管，冷凝水管，热水管，蒸汽管，热真空管，冷真空管，雨水管及城市水管。
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