teppei 发表于 2018-7-2 13:55:22

ISO 898-3 2018 平墊圈機械特性

ISO 898-3 2018
Mechanical properties of fasteners made of carbon steel and alloy steel -- Part 3: Flat washers with specified property classes

trh000 发表于 2018-7-2 13:55:23

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