Zhongke Scientific & Technical Co., Ltd.

Address: 1st Floor, Building 9, No. 100, Xianlie Middle Road, Guangzhou City, Guangdong Province

Main switchboard: 020-3765 6268 (transfer to all departments)

Customer service complaint hotline: 020-3765 6007

True Transmission: 020-8768 1505

Web address: http://www.guitar-dreams.com

Email: shengz_k@gdstie.com

Postal Code: 510070

Shanghai Sino Jinko Instrument Co., Ltd./Shanghai Branch of GDST

Address: Room 1701, T3, Changning International Development Plaza, No. 1398, Kaixuan Road, Changning District, Shanghai

Add: RM1701, Tower 3, Changning international and development Plaza, 1398 Kaixuan Road, Changning District, Shanghai, China

Telephone /Tel: 021-6260 8883

Hubei Chuyue Tech. Co., Ltd. / Wuhan Branch of GDST

Room 09, 23A Floor, Block B, Han Street Headquarters International, No. 86, Zhongbei Road, Wuchang District, Wuhan City

Add: Room09,23A,Building B, International Headquarters,Han Jie, No.86, Zhongbei Road,Wuchang District, Wuhan

Telephone /Tel: 027-8705 2217

Chengdu Zhongjin CrownTech Instruments Co., Ltd. / Chengdu Branch of GDST

Address: Room 4202, 42nd Floor, Aerospace Science and Technology Building, No. 7

Xinguanghua Street, Jinjiang District, Chengdu City

Add: Room4202,One Aerospace Center Building, NO.7 Xinguanghua Street, Jinjiang District, Sichuan Province

Tel: 028-8671 1862

Beijing Zhongke New Technology Development Co., Ltd. / Beijing Branch of GDST

Address: Room 506A, West Tower, China Overseas Land & Investment Plaza, No. 8, West Binhe Road, Yongdingmen, Dongcheng District, Beijing

Add: 506A, West Tower, China Overseas Property Plaza, No. 8 Yongdingmen West Binhe Road, Dongcheng District, Beijing

Telephone /Tel: 010-6569 8456

Shaanxi Sino Yinko Instrument Co., Ltd. / Xi'an Branch of GDST

Room 3102, Block B, Greenland Center, No. 11, Jinye Road, High-tech Zone, Xi 'an City, Shaanxi Province

Add:RM3102, Block B, Greenland Center, 11 Jinye Road, High-tech District, Xi'an City, Shaanxi Province

Tel: 029-8984 0896

Shenzhen Zhongpeng Feike Instrument Co., Ltd. / Shenzhen Branch of GDST

Address: Room 2802-2803, 28th Floor, Block A, Zhongguan Times Square, No. 4168, Liuxian Avenue, Nanshan District, Shenzhen City

Add: 2802-2803, Building A, Zhongguan Times Square, No. 4168, Liuxian Avenue, Pingshan Community, Taoyuan Street,  Nanshan District, Shenzhen

Telephone /Tel: 0755-8671 7583

Changsha office of GDST

Room 1007, Wanbo Huiyun Valley, No. 489, Shaoshan Middle Road, Yuhua District, Changsha City, Hunan Province

Add: Room1007, WanboHui Yungu Building, No. 489, Shaoshan Road, Yuhua District, Changsha

Telephone /Tel: 0731-8595 2002

Chongqing office of GDST

Address: Room 15A13, International Metropolis Office Building, No. 90, Jiazhou Road, Longxi Street, Yubei District, Chongqing City

Add: No. 15A13, Chongqing MIDTOWN Office Building, No. 90 Jiazhou Road, Yubei District, Chongqing

Tel: 023-6595 3309

Xinjiang office of GDST

Room 1303, Wanda Center, No. 555, Xuanwu Lake Road, Urumqi Economic and Technological Development Zone (Toutunhe District), Xinjiang Uygur Autonomous Region

Add: Room 1303, Wanda Center, 555 Xuanwu Lake Road, Urumqi Economic and Technological Development Zone (Toutunhe District),  Xinjiang Uygur Autonomous Region

Telephone /Tel: 0991-8816 289

Hong Kong office of GDST

Room 01-02, 16 / F, Enterprise Plaza Phase II, 3 Cheong Yip Road, Kowloon Bay, Hong Kong

Add: Flat/Room 01-02, 16/F, Enterprise Square Two, No.3 Sheung Yuet Road, Kowloon Bay, Hong Kong

Telephone /Tel: 852-2983 8066