Sell diamond compacts
Currently there are DC, DH, DCF-WBT and DCJ-DTA specifications. Has diamond hardness, high abrasive resistance and hard alloy strength together. Nowadays has been applied widely to exploration drilling of oil and coal mine, and cutting tools of mechenical processing nonferrous metal and nonmetal materials. Its lifespan is as ten times or so, even dozens of times as hard alloy cutters.