Low air pressure DTH hammers
Middle Air Pressure DTH Hammers
High Air Pressure with foot valve DTH hammers
Down the hole bits
overburden dirlling
Reverse Circulation Hammers
Thread bits
Lanzhou International inland Port of Multimodal Transportation Co., Ltd.
is a mixed ownership company established by Lanzhou International Port
Area Investment Development Co., Ltd., Lanzhou JINLUN Industrial Co.,
Ltd. and GANSU KAIDA International Freight Forwarding Service Co., Ltd.
Founded on April 22, 2016, the company has registered capital of 30
million yuan and is located in XINCHENG NO. 96-2, XIGU District of
Lanzhou City.
https://www.lzgjgdsly.com/down-the-hole-bits/