... PCBN cutting tool blanks, PDC cutters for oil/gas drilling and mining bits, PCD/PCBN cutting insert, diamond micron powder ... fields of machinery, electronics, aviation and space flight, optical instrument, glass, ceramic, oil, and geological drilling for the purposes ... stone, and so on;2) Making solid polycrystalline diamond, polycrystalline diamond compacts, and other PCD products;3) Coating the ...