It USES "a pair of small worm gears" to make conveying, so that it can make the diameter range of wire material wider.

以及它采用的“一对小蜗轮”传送，使线材直径范围放宽了一些。

youdao

It USES "a pair of small worm gears" to make conveying, so that it can make the diameter range of wire material wider.

以及它采用的“一对小蜗轮”传送，使线材直径范围放宽了一些。

youdao