亚洲一区二区不卡激情视频老年人_日韩超清无码中文字幕_一级?性色生活片毛片_最新最大的亚洲av网站_中午字幕在线免费_yy9299精品视频国产_顶弄裸睡的丹丹 第二部分_人妻在线播放a免费观看_九月婷婷亚洲综合在线_日韩热播电影

Product features

Specification: Φ 15 - Φ 350

Maximum length: less than 10000mm

Nitriding treatment, surface hardness: HV≥900

Nitriding depth: 0.5-0.8mm


2, material: surface WC/Co overall spray welding, can effectively improve the service life of screw


Extrusion screw - Granulation screw

Specification: Φ 15 - Φ 350

Maximum length: less than 10000mm

Nitriding treatment, surface hardness: HV≥900

Nitriding depth: 0.5-0.8mm


2, material: surface WC/Co overall spray welding, can effectively improve the service life of screw