| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SY/T 4006-1990 | English | RFQ |
ASK
|
3 days [Need to translate]
|
(Long-distance pipeline cathodic protection engineering construction and acceptance)
| Obsolete |
SY/T 4006-1990
|