Specialezed in prodeucing spindle for wind power energy. Certificate of CCS, ABS, LR, GL, BV ... , roller. And, our spindle of wind power station is well know in the wind power station manufacturers and enjoying excellent reputation. ... and machining as well.The certificat from CCS (China), ABS (USA), LR (GB), GL (Gemany), BV (France), DNV ( ... feel free to contact us with your inquiry. Wind Power Spindle