GB/T 47975-2026
非开挖钻杆用无缝钢管
Seamless steel pipes for no-dig drill pipe
- 实施日期
- 2027-02-01
- ICS 分类
- 77.140.75
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
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GB/T 47975-2026
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