| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| HG/T 21521-2005 | English | RFQ |
ASK
|
Days<=9
|
Vertical hanging cap weld neck flanges manhole
|
HG/T 21521-2005
| Obsolete |
HG/T 21521-2005
|