| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| JJG 639-1990 | English | RFQ |
ASK
|
Days<=3
|
Verification Regulation of Ultrasonic Source for Medical Ultrasonic Diagnostic Equipment
|
JJG 639-1990
| Obsolete |
JJG 639-1990
|