WJ 651-1995 《光学仪器用有色合金金属型铸件规范》.pdf

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CB 1085.6-1989 仪器仪表制造工时定额 光学零件加工与光学仪器装配.pdf

JB 5517-1991 光学仪器电气防护基本安全要求.pdf

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