| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| CECS 121-2001 | English | RFQ |
ASK
|
Days<=7
|
Specification of maintain technique for city heating pipelines
|
CECS 121-2001
| Obsolete |
CECS 121-2001
|