国产免费一区二区三区在线观看,国产大学生毛片一级高清,一本久久精品一区二区

CTB series magnetism selected equipment

The equipment is main used in iron selected plant , the coefficient of ratio magnetism have to more than3000×10-6cm2/g., the equipment have the wet type and dry type, together require the iron powder in 0.5-6mm,and the wet sizes have the size S/N/B.