To promote the installation of gas pipeline leakage monitoring and alarm system in metallurgical enterprises.
推动冶金企业安装煤气管道泄漏监测报警系统。
The mechanical elbow, hot-bending bend, cold-bending bend and elastic installation can be used to handle pipeline corners in design of gas pipeline.
在燃气管道设计中对管道转角的处理，可以采用机制弯管、热煨弯头、冷弯弯管、弹性敷设。
The property of initial installation charge for pipeline gas is analyzed, and the necessity for collecting the charge is expounded.
分析了管道燃气初装费的性质，阐明了收取燃气初装费的必要性。
Simultaneously the paper recounts the feature of PE pipeline and its design & installation in civic gas distribution system.
并简要地阐述了PE管在燃气管网系统中的特点及设计与安装。
Simultaneously the paper recounts the feature of PE pipeline and its design & installation in civic gas distribution system.
并简要地阐述了PE管在燃气管网系统中的特点及设计与安装。
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