成年男女免费视频网站,五月丁香亚洲综合无码,精品无码国产一区二区三区AV,亚洲人人妻偷人人

ZRQ115C-DHD340 drill bit technical parameters

Model

Edge teeth

Middle tooth

Head structure

Number of exhaust holes

Number of splines

Weight kg

With impactor

ZRQ115C-DHD340

7-Φ16Q

6-Φ13Q

Plane

2

8

8.2

ZRC4A

ZRQ115CZ-DHD340

7-Φ16Q

6-Φ13Z

Plane

2

8

8.2

ZRQ115C-DHD340 drill bit features

ZRQ115C-DHD340 drill bit is a universal drill bit developed by our company according to the characteristics of domestic rock formations, and its side teeth are adopted

Seven 16mm alloys improve the wear resistance and fracture resistance of the alloy, and the bit body adopts special heat treatment process

Technology, effectively reducing the probability of damage such as breakage, chipping, etc., so that the bit body and the alloy life can be effectively matched,

Embodied the characteristics of long life and high efficiency.