| 出生地 |
China (Mainland) |
| 年级 |
glass |
| 合金或者不是 |
非合金的 |
copper barmainly used for making the commutator of the DC motor ,exciting motor ,motor amplifier as wellas the special electric contact and coil ring,etc. We offer trapezoidal copper bar copper bus bar,lat copper wire , copper bus bar and so on . special size &specification upon our clients,we can make up for you.