Cold upset female die of fillister head is the key mold in the manufacturing process of heading bolt.
镦圆头凹

镦螺栓生产过

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具。
槽,凹刨Cold upset female die of fillister head is the key mold in the manufacturing process of heading bolt.
镦圆头凹

镦螺栓生产过

关键
具。
Abstract: Cold upset female die of fillister head is the key mold in the manufacturing process of heading bolt.
摘
:
镦圆头凹

镦螺栓生产过

关键
具。
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