Pob zeb diamond sib xyaw cov hniav (DEC) tuaj yeem muab faib ua: pob zeb diamond sib xyaw conical hniav, pob zeb diamond sib xyaw kheej kheej cov hniav, pob zeb diamond sib xyaw conical kheej kheej cov hniav, pob zeb diamond sib xyaw ovoid hniav, pob zeb diamond sib xyaw cov hniav, pob zeb diamond sib xyaw tiaj tus hniav nyob rau hauv cov nqe lus ntawm cov tsos thiab kev ua haujlwm. lwm.
Nws yog dav siv nyob rau hauv engineering excavation thiab kev tsim kho teb xws li cov menyuam lub khob hliav qab cov khoom, down-lub-qhov khoom, engineering drilling cuab yeej, thiab crushing machinery. Nyob rau tib lub sijhawm, ntau qhov tshwj xeeb ua haujlwm ntawm PDC me ntsis yog siv, xws li poob siab absorbing hniav, nruab nrab hniav, ntsuas hniav, thiab lwm yam.