(资料图片)
1、这是规定画法。
2、每种螺栓的头部画法都不一样的。
本文分享完毕，希望对大家有所帮助。
(资料图片)
1、这是规定画法。
2、每种螺栓的头部画法都不一样的。
本文分享完毕，希望对大家有所帮助。
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