40Cr China hollow rock drill rod
The hollow steel 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 hollow steel drill rod has strict tolerances and higher standard of fine finish, The major drill rod we supply are 55 SiMnMo Hex and Round steel drill rod. 40Cr China hollow rock drill rod
Major materials : 55 SiMnMo Hex and Round steel drill rod
Major dimensions we supply is B19,B22,B25,B28,B32,B35. (H19,H22,H25,H28,H32,H35).
Standard: Natinal standard, Altas copco’s stanard, Customer’s standard.
Hot sales product: H19 Hollow hexagonal steel and R32 Hollow round rock drill rod.
Factory best price for your needs.
If you need any rock drilling tools, please contact our company: