GB/T 19418-2003 Arc-welded Joints in Steel - Guidance on Quality Levels for Imperfections

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Uploading Date: 2021-02-26 14:19:01

This standard is identical to ISO 5817:1992 "Arc-welded joints in steel-Guidance on quality levels for imperfections "Appendix A of this standard is informative.

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MED-Notice by General Office of Ministry of Science and Technology of the People´s Republic of China on Optimizing the Administrative Examination and Approval Process of Human Genetic Resources

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