功学社（天津）商贸有限公司

北京市朝阳区朝阳门外大街26号朝外MEN写字中心B座21层(100020)

K.H.S. (Tianjin) Sound Instrument Co., Ltd.

Floor 21, Block B, Chaowai Men Office Building, No. 26 Chaoyangmen Outside Avenue, Chaoyang District, Beijing

010 67124640