Using to projects of mine blasting, water well drill, geothermal well drill, pipe-shed support drilling, coal mining and non-ferrous mental mining and so on.
SPEC: 50/60/73/89/102/114/127 millimeters
spec：∮73*9*（9.5/6.1）M spec：∮89*10*（9.5/6.1）M
pipe body material：DZ40、DZ50、R780、G105
tool joint material：40Cr、45Mn2、35CrMo、4137H
Gina Gao
(Oversea Sales Manager)
Mob: +8615831190484
SKYPE: lwdrillsales10
Email:ginagao321@gmail.com
