China National Standards

China industries－Design GB Standards List

  •  China "industries－Design" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 37265-2018 Petroleum and natural gas industries－Design and operating limits of drill strings with aluminium alloy drill pipes
    石油天然气工业-含铝合金钻杆的钻柱设计及操作极限    		 China National Standards
    industries－Design
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