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。

youdao

It also offers specialized application services, such as building automation control systems, fire protection, process cooling, electronic monitoring, and process piping, in addition to providing electrical and plumbing services.

FORBES: Comfort Systems Gains Momentum