| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| HG/T 20637.2-1998 | English | RFQ |
ASK
|
Days<=7
|
Symbols and identifiers for engineering design of instrumentation
|
HG/T 20637.2-1998
| Obsolete |
HG/T 20637.2-1998
|