JB/T 997-1977 Welded branch pipe joint body JB/T997-1977 standard download decompression password: www.bzxz.net
Some standard content:
Standard of the First Machinery Industry Department of the People's Republic of China Welded branch pipe joint body C×45° Marking example: Branch pipe joint with pipe outer diameter of 28mm: Joint body 28JB99777bZxz.net The First Machinery Industry Department of the People's Republic of China issued and proposed ·Standardization Research Institute of the Ministry of Machinery Industry JB997-77 Replace JB99767 Other Yu√3 Implemented on May 1, 1977 Drafted by Jinan Foundry and Forging Machinery Research Institute, etc., a total of 2 pages, page 2 Outer pipe JB99777 M12×1.25 -0.20/M22×1.5 M36×2 M42×2 M52×2 M60×2 Technical conditions shall be in accordance with the provisions of JB1003-77. Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.