Now let me  introduce our Kaifull motor for your evaluate :our best advantage is step motor,our raw material and equipments are all imported form Japan ,and we have a professional quality control group. so our  reject ratio can reach 6PPM .this should be the best class in the electromachanical trade.So we are very confident of our quality .You may know that there are many grade of step motor , we could assure you that ours is NO.1 ,For the quality , it's grade 1 , which you could see from the spec. ,We have factory to guarantee the quality , the delivery time ; we have the engineers to guarantee service ,I guarantee to be on your service all the time !You could buy a sample for testing at first , after your total order up to 1000pcs , we could reback the cost of it and the shipping cost of it to you !models :Products step motor , driver , power supply , gear step motor , servo