四川少妇bbw搡bbbb槡bbbb,你多宠着我小说全文免费阅读,亚洲在线精品中文字幕,电影网经典三级,深夜免费在线观看视频www色,开讲啦苏有朋,亚洲美女在线视频观看,麻花传媒md034苏蜜清歌,无遮挡成人肉动漫在线观看,春闺密事 秦兮免费阅读

Shandong Zhongrui Construction Machinery Co., Ltd official website!

National Service Hotline:
15005366588
ZRQ165-DHD350 high wind pressure down-the-hole drill bit
ZRQ165-DHD350 high wind pressure down-the-hole drill bit
 
 

ZRQ165-DHD350 drill bit technical parameters

Model

Edge teeth

Middle tooth

Head structure

Number of exhaust holes

Number of splines

Weight kg

With impactor

ZRQ165-DHD350

8-Φ18Q

8-Φ16Q

Concave surface

2

8

17

ZRC6

ZRC6A

DHD360

COP64

ZRQ165-DHD350 drill bit features

ZRQ165-DHD350 drill bit is a kind of general purpose drill bit developed by our company according to the characteristics of domestic rock formations. Its side teeth are mining

 

Using eight 18mm alloys to ensure the wear resistance and fracture resistance of the alloy, and the large head adopts a concave layout.

 

The straightness of the drill bit during the drilling process is effectively ensured, and the bit body adopts a special heat treatment process, which effectively reduces the amount

 

Its breakage, collapse and other damage probability make the drill bit body and alloy life matched effectively, reflecting the high lifespan

 

The characteristics of life and high efficiency.