视频不卡一区二区三区,有码精品com,999视频精品全部免费,大香蕉东京,国产少妇青青草在线视频,亚洲色偷偷,欧美精品福利区,一本一区二区在线,色偷偷色偷偷

Introduce for bimetallic screw and barrel: 

 screw and barrel diameter: Φ15~Φ300

For bimetallic barrel, we use Centrifugal casting technology, it can increaseing the useing life of the barrel. For bimetallic barrel, it contain the tungsten30%~50%.

Introduce for Stainless steel screw

The material we use 9Cr18MoV, after treatment, quenching then for using together with bimetallic barrel. Widely apply to processing PMMA, PC etc. To be made of plastics products.

Technical Parameter

Depth of Bimetallic：2.0~3.0mm

Hardness of Bimetallic: HRC59°~65°   

Roughness of the surface: Ra 0.4um

Straightness of the screw/barrel:0.015mm

This types screw and barrel apply to: normal plastic, PP, PE, ABS, AS, PS, etc.