Zhengzhou Halnn Superhard Materials Co., Ltd

Address: Research 5# Building B site 21-11 room, the national university science park, Hi-tech District, Zhengzhou, Henan Province, China

Tel: +86-371-67129683

Fax: +86-371-67981990

Mob: +86-13271562251(Whatsapp)

Wechat: Halnntools

Skype: info@halnn-group.com

Email: info@halnn-group.com