886-6-3127675
10/F-4, No. 12, Zhonghua Rd., Taiwan
GSM intercom 3G doorphone for emergency call, service call, taxi free phone 54125, US $ 1 - 2 / Piece, Taiwan, China, Gainwise, SS91BV-M, SS91BV-M.Source from GAINWISE TECHNOLOGY CO., LTD. on Waimaotong.com.