The break-up of the gas piping, the letting out of liquefied petroleum gas, the bursting of the running waterpipe, calamity accident caused in subside of road surface and bridge,etc.
煤气管道破裂、液化石油气泄漏、自来水爆裂、路面桥梁塌陷等引起的灾害事故；
2
Applied to Automatic Control Valves the exhaust pipe auto exhaust valve should be installed on top of the water cycle, the gas readily forms place.
运用于管道排气的自动排气阀应安装在热水循环的顶端，气体容易堆积的地方。
3
Delivery of epoxy resin coated steel pipe is suitable for water, water, water, oil, gas and other medium, PVC plastic pipe for drainage, water, oil, gas and other media delivery.