A die plate for flattening metal into strips, as in the manufacture of watch springs.
A die plate for flattening metal into strips, as in the manufacture of watch springs.
扁条拉模一种用来拉平钢条的模板，如用于生产手表发条的模板
A die plate for flattening metal into strips, as in the manufacture of watch springs.
扁条拉模一种用来拉平钢条的模板，如用于生产手表发条的模板