China National Standards

China equipment—Packers GB Standards List

  •  China "equipment—Packers" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 20970-2015 Petroleum and natural gas industries—Downhole equipment—Packers and bridge plugs
    石油天然气工业 井下工具 封隔器和桥塞    		 China National Standards
    equipment—Packers
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