Standard for Accrediation of Test Facilities for AWS Certified Welder Program - AWS QC 4-89 /
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| Hovedforfatter: | American National Standards Institute |
|---|---|
| Format: | Bog |
| Sprog: | Vietnamese |
| Udgivet: |
American :
American Welding Society ,
1989
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| Fag: | |
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| Thư viện lưu trữ: | Thư viện Trường CĐ Kỹ Thuật Cao Thắng |
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