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| Position: Chinese Standard in English/YBJ 221-1990 |
| YBJ 221-1990 (English Version) | |||
| Standard No.: | YBJ 221-1990 | Status: | superseded |
| Language: | English | File Format: | |
| Word Count: | 27000 words | Price(USD): | 810.00 remind me the price change |
| Implemented on: | 1991-1-1 | Delivery: | via email in 1~5 business day |
| Standard No.: | YBJ 221-1990 |
| Chinese Name: | 黑色冶金矿山井巷施工测量规范 |
| Chinese Classification: | D15 Mining |
| Professional Classification: | YB Professional Standard - Metallurgy |
| Implemented on: | 1991-1-1 |
| Status: | superseded |
| Superseded by: | YB/T 4385-2013 Surveying Specification of Underground Engineering of Metallurgical Mine |
| Superseded on: | 2014-3-1 |
| Abolished on: | 2014-03-01 |
| Language: | English |
| File Format: | |
| Word Count: | 27000 words |
| Price(USD): | 810.00 |
| Delivery: | via email in 1~5 business day |