GB standards are the China national standards; Prefix code GB are Mandatory standards, GB/T are Recommended standards; All products or service must be compliance with GB standards; If you want to export products or services to huge Chinese market, need ensure they are meet the requirements of GB china national standards; We provide Chinese GB standards and English version GB standards Lookup, Translate, Download, Imported Commodity GB standards Testing and Compliance review services. |
Standard Code | Standard Title | Standard Class | Order |
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GB/T 21411.2-2009 |
Downhole equipment for petroleum and natural gas industries - Progressing cavity pump systems for artificial lift - Part 2: Surface-drive systems 石油天然气工业井下设备 人工举升用螺杆泵系统 第2部分:地面驱动装置 |
China National Standards Downhole equipment f |
English PDF |
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