| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 20657-2006 | English | RFQ |
ASK
|
Days<=9
|
Petroleum and natural gas industries -- Formulae and calculation for casing, tubing, drill pipe and line pipe properties
|
GB/T 20657-2006
| Obsolete |
GB/T 20657-2006
|