久草性视频,日本精品1区2区,亚洲毛片一区二区三区,a级特黄视频,1区2区视频,久草在线新首页,日韩在线观看免费

Welcome toChangzhou Tianrong Testing Technology Co., Ltd！ Home |  Contact

yarn examining machine

yarn examining machine
yarn examining machine
Detailed instructions：

Summarize

Used for reel specified count yarn in show board to evaluate the appearance of yam.

Standards: GB/T9996, GB/T398, GB/T5324, FZ/T32004, FZ/T32005等。

Technical parameter

image