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: +86-371-67129687

Fax: +86-371-67981990

Mob: +86-15617635382(Whatsapp)

Wechat: zzhlcyyingxiao

Skype: info@halnntools.com

Email: info@halnntools.com
 


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