SF DIAMOND CO., LTD, China's largest manufacturer of polycrystalline diamond (PCD) blanks, who can offer PCD, PCBN, diamond, PCD blanks for drawing wire; PCD blanks for cutting tools; PDC blanks for drilling bits and other related products. An ISO9001 registered company; SF DIAMOND has a reputation for high quality, good service, reasonable prices and timely delivery since its launch in 1997.