Contact Information

Canada Head Office
Greatstone International Ltd.
398 Nash Rd. N., Unit 3
Hamilton ON L8H 7P5

Tel: +1-905-561-0448
Fax: +1-905-561-8780
Email: gsi@greatstone-international.com
Website: www.greatstonehvacr.com 

China Branch Office
Shenzhen Greatstone International Ltd.
Rm 1405 E, Yi Hai Square
Chuangye Rd., Nanshan District
Shenzhen, Guangdong Province
China 518054

Tel: +86-755-2641-0497
Fax: +86-755-2649-0391
Email:gsi@greatstone-international.com

Website: www.greatstonehvacr.com