Main Features: Big spindle bore and double chuck allows clamp and process big diameter pipes; Integral machine bed adopts high strength iron to realize high rigidity and precision; Ultrasonic frequency quenched guide-ways are hard enough for good wear-resistance; Equipped with taper guide bar device this enables the machine to process taper threads;

Main Features: Big spindle bore and double chuck to ensure process big diameter pipe; One-piece bed adopts high strength iron to ensure rigidity and precision; Ultrasonic frequency quenched guide-ways ensure good wear-resistance; Carriage and guide way contact surface use Turcite B to maintain accuracy;

Main Features: Big spindle bore and double chuck allows clamp and process big diameter pipes; Integral machine bed adopts high strength iron to realize high rigidity and precision; Ultrasonic frequency quenched guide-ways are hard enough for good wear-resistance; Equipped with taper guide bar device this enables the machine to process taper threads;