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  4. Standard "GB/T 20657-2011"
WITHDRAWN GB/T 20657-2011 30.12.2011 preview

GB/T 20657-2011

Petroleum and natural gas industries—Equations and calculations for the properties of casing,tubing,drill pipe and line pipe used as casing and tubing

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Petroleum and natural gas industries - Equations and calculations for the properties of casing, tubing, drill pipe and line pipe used as casing and tubing



STANDARD published on 30.12.2011


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The information about the standard:

Designation standards: GB/T 20657-2011
Note: WITHDRAWN
Publication date standards: 30.12.2011
SKU: NS-356141
Country: Chinese technical standard
Category: Technical standards GB

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