Since its foundation in 2004, depending on the unique culture and geography circumstance of Qufu and upholding the belief “Quality persisting, Excellence achieving, Customer respecting, Integrity keeping and Innovation developing”, Qufu ChongDe has successfully developed collet chucks, CNC tools and other accessories with high accuracy high precision and high speed, such as ER collets (5μ/8μ),SK collets(5μ), EOC(OZ) collets (10μ), C-straight collets(10μ/5μ) and BT/DIN69871(SK)CAT,HSK taper shank collet chucks, cutter head as well as other precision accessories, which are widely used in the machines with high balance and high accuracy. Now, there are 170 workers in the company, including 52 workers with university education, the area of the workshop is over 5000 ?, there are more than 100 machines and other production equipment, such as Grind machine, lathe and Milling machine center etc, we have the ability to produce 60000 pcs collets, chucks and other accessories each month, the annual output in 2011 is over 50 million RMB. In order to improve quality.