杜一特橡胶制品
2016-11-24
(1) high residual magnetic flux density Br. Because in the same magnetic surface area and air gap, Br high to produce large output torque and large power. The motor will have a higher efficiency. (2) high Hcb. Because Hcb high, in order to e
中国广东省东莞市凤岗镇官井头水库工业一路4号