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GDC series machines are designed with double headstocks to increase working efficiency greatly. Gear-box with characteristics of large torque in low speed and constant power in high speed is supplied for main transmission system; The movable bridge frame is designed with advanced synchro-driving technology used for transmission of gear and rack to secure high transmission accuracy. The machines can accomplish various drilling of all sorts of tube plate work-pieces in one time setting-up.

 
     
 
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