We are specializing in manufacturing of materials and tools for civil and mining for many years. Therefore we have wide experience and series of high quality products 1. Button bits, connection tapered or threaded, diameter from 33mm to 127mm; 2. Cross bits, connection tapered or threaded, diameter from 28mm to 95mm; 3. Coupling sleeves, R25, R32, R38, T38, T45, T51; 4. Down the hole hammers, similar or equal DHD, COP, SD and BR etc.series hammers; 5. Down the hole bits, similar or equal DHD, COP, SD and BR etc. series bits; 6. Diamond materials and tools, core bits and saw blade, Core bit & Reaming shell NQ, BQ, HQ, NQ, etc,, Synthetic Diamond & CBN Grinding wheels, etc. ; 7. ODEX system; We can produce: a) High pressure DTH hammer 1) 3.5" hammer, shank : DHD3.5 2) 4" hammer, IR DHD340A / SD4 / COP44 shank 3) 5" hammer, IR DHD350R / SD5 / COP54 shank 4) 6" hammer, IR DHD360R / SD6 / COP64 / XL6 shank 5) 8" hammer, IR DHD380 / SD8 / COP84 shank b) Low pressure DTH hammer BR1, BR2, J60, J80, J100, J150, etc c) also can produce the DTH bits suitable for above DTH hammer and SD12 shank DTH hammer. The biggest size we have exported is 330mm for SD12. d) ODEX system Odex 115 system Odex 140 system Odex 165 system Odex 190 system Odex 230 system Odex 240 system