address：Room 303, 3rd Floor, 46 Chun Yip Street, Kwun Tong, Kowloon, Hong Kong

Website：www.htsprings.com

Email：thomas@htsprings.com

Phone：+852 2174 6078

Fax：+852 2174 6778

address：No. 427, Changma Road, Changping Town, Dongguan City, Guangdong Province, China.

Contacts：Mr. Ken Du

Email：ken@htsprings.com

Phone：86-769-8391 1281

Fax：86-769-8339 7158

address：NO.1 Longtai Road, Shuangdong Environmental Protection  Industrial Park,Shuangdong Street,Luoding City, Guangdong Province, China

Phone：+86 766 6913888

Company name：Nventv.LLC

address：501 Main Street, Box #74, Boonton NJ 07005, USA

Website：www.ocean-metal.com

Email：info@ocean-metal.com

Phone：+1 973 698 6947

address：Floor 2, Building B02, Shuangdong Environmental Protection Industrial Park,Luoding City, Guangdong Province, China

Phone：+86 766 3903328

Website：gd.htsprings.com