SJ 1538-1987 Chemical composition of nickel and nickel alloys for vacuum devices SJ1538-1987 standard download decompression password: www.bzxz.net

Standard of the Ministry of Electronics Industry of the People's Republic of China SJ153887
SJ1538-79
Nickel and nickel alloys for vacuum devices and their chemical analysis methods
Published on February 10, 1987
Implemented on December 1, 1987
Approved by the Ministry of Electronics Industry of the People's Republic of China Standard of the Ministry of Electronics Industry of the People's Republic of China Chemical composition of nickel and nickel alloys for vacuum devices This standard applies to nickel and nickel alloy materials for the manufacture of vacuum devices. Name, grade and use of alloys
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Xie The chemical composition of materials and magnesium alloys for manufacturing vacuum devices shall comply with the provisions in Table 2. 2
3After negotiation between the supply and demand parties, magnesium and magnesium alloy products with grades other than those in Table 2 may be supplied. The Ministry of Electronics Industry of the People's Republic of China issued on February 10, 1987 and implemented on December 10, 1987
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