| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| YD/T 687-1994 | English | 319 |
Add to Cart
|
Days<=3
|
Quality grading criteria of space-division SPC telephone exchanges
|
YD/T 687-1994
| Obsolete |
YD/T 687-1994
|