China National Standards

China Specification wellbore quality Industry Standards English PDF List

  •  China "Specification wellbore quality" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    SY/T 5088-2008 Specification for wellbore quality
    钻井井身质量控制规范    		 China Oil & Gas Industry Standards
    Specification wellbore quality
    English PDF

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