1a99 chemical industry

Common raw materials

Forging display

CNC processing

1A99GB_

2021113 · 1A99: :1A99 :LG5 :GB/T 3198-2003 : , AB2. AB1. AB0. AB00. AB000. 1A99: Si :0.003 Fe: 0.003 Cu :0.003 Al :99.99 ::0.002

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- 2-6 - ()..doc7-11 - 0.2% 0.77% 1.0% ...•

1A99 LG5 - GB /T 3190-2020 -

1A99 LG5 GB /T 3190-2020 Chemical Compositions of wrought aluminum and aluminium alloys ①

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1A99 - GB/T 3190-2008 -

GB /T 3190-2008. . . ①(、、、、、、). ②

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The state of the chemical industry: Three trends | McKinsey