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hexagon socket head screw
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短语
六角凹头螺钉键
hex socket screw key
内六角凹头螺钉
Hexagon socket head cap screws
六角凹头固定螺钉
hexagonal hollow set screw
;
hexagon socket set screw
六角凹头平头螺钉
Hexagon socket head cap screws
六角凹头紧定螺钉
Hexagon socket set screws
六角凹头止动螺钉
hexagonal socket set screw
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