您要查找的是不是：
- PE燃气管道 PE gas pipeline
- PE燃气管材 PE pipe material
- 管道 pipeline
- 水及燃气管道用球墨铸铁管、管件和附件 Ductile iron pipes. Fittings and accessories for water or gas applications
- 燃气 fuel gas
- 燃气管道不停输带气连接故障的原因和预防 Trouble Shooting of Gas Pipeline On-line Connection
- 管道系统 ductwork
- 试论聚乙烯燃气管道与供暖管道的水平安全间距 On Safety Clearance between Polyethylene Gas Pipeline and Heating Pipeline
- 压力管道 pressure conduit
- 燃气用PE管 gas PE pipe
- 基于数据挖掘的地下燃气管道风险指标体系设计 Design for underground gas pipe-line risk factors system based on data mining
- PE管道 PE pipeline
- PE球阀在庭院燃气管网中的应用 Application of PE Globe Valve in Courtyard
- 应用PE管修复油气管道技术 Repairing Oil and Gas Pipeline with PE Pipe
- 燃气管道 gas pipeline
- PE管道在地源热泵系统中的应用 Application of PE pipe in the ground source heat pump system
- 燃气系统:从车间外墙外1米处的接点至工业炉的燃气管道。 Gas system: gas pipe line from the joint at 1m from the workshop outside wall to industrial furnaces.
- 埋地燃气管道 buried gas pipeline
- 管道燃气 pipeline gas
- 管道燃气业 gas-piping industry
