Min. Order Reference FOB Price
1 Piece US$100.00-200.00 / Piece
Product Description
General Introduction Changsha Tianhe Drilling Teamwhole can produce wide range of TH bits,range from 3"-47"(76mm-1200mm)in diameter.These DTH bits shank can cover all of international brand like BR,MACH,DHD,COP,IR,NUMA,SD,QL,MISSION etc. DTH bits are made from high quality alloy steel and ...