hexagonal socket set screw的意思|示意
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内六角紧定螺钉
hexagonal socket set screw的网络常见释义
六角凹头止动螺钉 ... Countersunk socket head screw 沉头六角螺母 hexagonal socket set screw 六角凹头止动螺钉 Socket head screw wrench 内六角扳手 ...