1. My co***ny has more than 50 sets of imported machine center 2. In implementing chuck repeat position accuracy within 0.01mm ,central chuck accuracy within 0.02mm . 3. Its products include hydraulic chucks ,built-in pneumatic chucks,pneumatic/hydraulic collet chucks ,index chucks ,floating chucks ,non-standed chucks,rotating oil cylinders ,and rotating air cylinder , etc....