少妇一夜三次一区二区,WWW插插插无码视频网站,精品无码一区二区三区电影,sM调教我的奴性奶牛女友小说

3

DLC coating for textile instrument groove needle

    紡織器械槽針DLC涂層

Tools with cutting edge solutions 

Technical features:

1. The HiPIMS+PECVD method is used to prepare low-damage DLC coating to maintain the sharpness of the cutting edge.

2. The hardness is 1500Hv, the friction coefficient is lower than 0.15, and the HSS bonding force is HF1.

3. The DLC coating is doped with Ag, and Cu has antibacterial effect.


Tools with cutting edge solutions