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湖北三叉头手穿针分几种
更新时间: 2020-11-01 00:00:00  

1、手穿针又名子母扣、手穿胶针、吊环、套丝等,是PP料和尼龙料经塑胶模具注塑而成的一种针。

2、结构分为头和尾,亦称公和母,头分为三叉形与圆形,尾(即有孔的一端)分为圆柱形与圆台形。

关键词: 湖北 三叉

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