surface grinding machine 1.CE and SGS,ISO9001 2.Produce 50sets each month 3.Delivery within 7 working days Description:Wonder motor and Delta inverterGear With Vacuum nitriding process1.New configuration of Q6 with wonder motor with secondary energy saving and high efficiency,crafted,durable and attractive.2.adopt 220V variable frequency speed control,gear boxand motor are made of aluminum.3.2 ...