Hot tapping gas pipeline
11:50
Great Teamwork Skills Of The Workers When Hot Tapping Giant Pipeline | Awesome Welding Skill
30:31
TD Williamson - Welding on In service Pipelines (1993)
18:46
Hot Tap and Stopple Bypass at Smoky Lake - Part 1
5:40
球囊式阻斷、管道不停輸帶壓開孔封堵、更換閥體
44:30
Constructing Mammoth Underwater Gas Pipeline | Building The Biggest | Spark
21:55
How to proceed for a hot tap
5:14
Hot Tapping and Line stopping services
4:13