China hollow rock drill rod
The hollow rock drill rod we supply are produced from the finest quality steel material , designed to withstand the stresses developed by the high powered drilling machines. The major applications include mining, quarrying, tunnelling, welling and civil engineering, The steel drill rod has strict tolerances and higher standard of fine finish, The major drill rod we supply are round hollow drill rod and hexagonal hollow drill rod. 40 Cr hollow anchor rod.
Major materials : 55SiMnMo hex steel drill rod
Major dimensions we supply is B19,B22,B25,B28,B32,B35.
Standard: Natinal standard, Altas copco’s stanard, Customer’s standard
If you need any rock drilling tools, please contact our company: