We are a professional manufacture of rock drilling tools, mining DTH Drilling tools and construction tools.
1. Integral drill Rods (Integral Drill steel)
Shank H22x108mm, H19x108mm, standard hex, Bit diameters include 20-42mm
2. Tapered (Tapered Steel)
Including rods with ...
Telephone:86-635-6391888
Address:Yanshan Road South, Yanggu, Shandong, China