It's one of best methods to use polyurethane rubber rather than usual cavity or core in steel die.

以聚氨酯橡胶代替通常钢模中的凹模或凸模是比较有效的方法之一。

youdao

It's one of best methods to use polyurethane rubber rather than usual cavity or core in steel die.

以聚氨酯橡胶代替通常钢模中的凹模或凸模是比较有效的方法之一。

youdao