A new theft proof pipe cap is introduced, it can effectively prevent the oil from being stolen in the field.
介绍一种在野外可以有效防盗的新型防盗堵头。
Based on design practices, define space of fire proof pipe rack, and elaborate design principle of pipe rack of outside plant.
以设计实例为依据，确定管架防火间距；阐明厂外管架总图设计的原则。
The electric circuit in the work location should use steel-pipe laying wire and select explosion-proof electrical equipment.
工作场所内的电气线路应采用钢管布线，电气设备选用防爆型的。
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