I got these from their website:
Artsound International Development Co. Ltd.
Webseite
http://www.artsound.com.cn
Adresse Room 501,5/F Elite Industrial Centre
883 Cheung Sha Wan Road
Kowloon, Hong Kong
Telefon (+852) 2417 7128
Fax (+852) 2417 7138
Email
artsound@hknet.com
Audio Link System Co. Ltd.
Webseite
http://www.audiolinksys.com
Adresse Unit 5 16/F
Thirving Industrial Center
26-38 Sha Tsui Road
Tsuen Wan, NT,
Hongkong, China
Telefon (+852) 24166718
Fax (+852) 24120525
Email
audiolink@audiolinksys.com
Jolly Pro Audio Broadcast Engineering Ldt.
Webseite
http://www.jollyproaudio.com.hk
Adresse Unit 2, 10 F, Wah Hung Centre
41 Hung To Road
Kwun Tong, Kln.
Hongkong, China
Telefon (+852) 2191 3660
Fax (+852) 2191 3990
Email
jolly@jollyproaudio.com.hk
TOP CAST AVIATION SUPPLIES Co. Ltd.
Webseite
http://www.topcast.com.hk
Adresse 15/F World Peace Centre,
55, Wo Tong Tsui Street,
Kwai Chung, HongKong
Telefon (+852) 2305 4111
Fax (+852) 2305 4388
Email
mailbox@topcast.com.hk
Service
Artsound International Development Co. Ltd.
Webseite
http://www.artsound.com.cn
Adresse Room 501,5/F Elite Industrial Centre
883 Cheung Sha Wan Road
Kowloon, Hong Kong
Telefon (+852) 2417 7128
Fax (+852) 2417 7138
Email
artsound@hknet.com
Jolly Pro Audio Broadcast Engineering Ldt.
Webseite
http://www.jollyproaudio.com.hk
Adresse Unit 2, 10 F, Wah Hung Centre
41 Hung To Road
Kwun Tong, Kln.
Hongkong, China
Telefon (+852) 2191 3660
Fax (+852) 2191 3990
Email
jolly@jollyproaudio.com.hk