Henan Huanghe Whirlwind Co. Ltd is a listed company( stock code:600172) that is specialized in researching , developing, producing and selling of superhard material, superhard material tools and related tools. Base in Changge, Henan province, our company has national enterprise technology center and enterprise postdoctoral workstation which makes us the leading company in the industry. Our subsidiary companies and R&D Distribution are in Changge, Zhengzhou, Shanghai and Beijing. The main products are: synthetic diamond, diamond micron powder, diamond crashed material, CBN and related coted products. Our advantage are: Abundance experience advanced equipment and technology, strong R&D force and mature inspection procedure. We are the only company in China that can realize the whole production process from accelerant making to diamond synthesizing and micron powder and crashed material making, thus ensuring the good performance and stability of the products. Welcome to inquiry us if you want to realize our company. 26F, Landmark Plaza, A-1 CBD, Zhengzhou, Henan, China