Dingzhou Yongsheng Grain Oil Machinery Company is Specialized mill of grain and oil facility in Hebei Province We have 10 professional and technical personnel and 5 senior engineer among them The area of mill is 35 000 square meter and capital assets is 15 million We own various modern processing machine more than 200 sets of which is controlled heat by computer for the heat treated carburizing process and up to the national advanced standard additionally and the test methods of physical and chemical inspection for the mechanical properties are complete For about 20 years we designed and developed many specialized machines independently Such as YZY 400 whole day spiral oil extraction press...