如果煤气管漏气，你必须关闭送气管，否则很危险。
If the gas blows back you must turn off the supply, as it is dangerous.
我们是一家专业生产玛钢管件的公司。玛钢管子零件应用于供水管道、水蒸气管道、煤气管道、输油管道的连接。
We are professional on malleable iron pipe fittings. They are used for joining pipes lines of water, steam, gas, oil and etc.
分析了煤气管道泄漏的原因，介绍了煤气管道泄漏的抢修方法和注意事项。
Analyzes the coal gas piping to leak of reasons, introduces the coal gas piping to leak of first-aid repair the methods and regulation.
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