IAPMO Z1157-2014 标准详情
- 标准号:IAPMO Z1157-2014
- 中文标题:
- 英文标题:Ball Valves
- 标准类别:国际管道机械与工程协会标准
- 发布日期:
Includes ball valves in sizes NPS-1/8 to NPS-4, with minimum rated working pressures of 860 kPa (125 psi) at 23 degrees C (73 degrees F), intended for use in water supply and distribution systems and specifies requirements for materials, physical cha
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