... 3.CE .ROSH ,BV etc. certification . 4.Producer . Motor graphite carbon brush manufactuer : 1. The dimension can be designed and ... United power , Sinovel , Hefei Smarter etc . enterprises .4. Our carbon brush use application including : harbour, ship , oilfield , cable , crane , cement ... , Dear friend , if you interested in this type carbon brush ,please feel free to contact with me anytime : Skype : ...