![]() Mechanical tests for metal alloys adornment chains—Tensile testing 金属及其合金饰品链力学性能测试 拉力测试 |
![]() Leaf chains,clevises and sheaves - Dimensions,measuring forces and tensile strengths 板式链、连接环和槽轮 - 尺寸、测量力和抗拉强度 |
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