NEN EN 1591-4-2013 标准详情
- 标准号:NEN EN 1591-4-2013
- 中文标题:
- 英文标题:Flanges And Their Joints - Part 4: Qualification Of Personnel Competency In The Assembly Of The Bolted Connections Of Critical Service Pressurized Systems
- 标准类别:荷兰国家标准NEN
- 发布日期:
Pertains to the bolting technicians, and their supervisors, the responsible engineers, who disassemble, assemble and tighten the bolted connections of whatever shape of critical service pressurised systems.
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