Top view of fillister head screw.
槽头螺钉的俯视图。
Top view of fillister head screw. Selection box represents thread diameter.
槽头螺钉的俯视图。选择框代表螺纹直径。
Cold upset female die of fillister head is the key mold in the manufacturing process of heading bolt.
冷镦圆头凹模是冷镦螺栓生产过程中的关键模具。
Cold upset female die of fillister head is the key mold in the manufacturing process of heading bolt.
冷镦圆头凹模是冷镦螺栓生产过程中的关键模具。
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