... D three joinning mode.A type unite transmission direct with motor, C type link transmission with belt pulley, D type link ... transmission group,matched with the domestic series of Y three-phase motor.The anticentripetal ventilator have 2.8A-6A,6D-12D,6C ... is made of leaf-wheel,encloser,windsender,machine support and motor.6D-12D,6C-12C has transmission system.1. It is ...