Henan Huanghe Whirlwind Co., LTD. was listed on Shanghai Stock Exchange(Stock Code:600172) in 1998. The company has developed into a national large-scale enterprise integrating scientific research, production and trade. The subsidiary companies are distributing in Changge, Zhengzhou, Beijing and Shanghai. The company owns the State-Recognized Enterprise Technology Center, Postdoctoral Scientific Research Station and Henan Provincial Superhard Composite Materials & Products Engineering Technology Research Center. We are the key high-tech enterprise with many key technologies and independent intellectual property rights, some of the products have reached the international advanced level. The company has passed the ISO9000 international quality& management system certification, the ISO14000 international environment management system certification and the OHSAS18000 international professional health& security management system certification. The brand "whirlwind" synthetic diamond has been praised as "China top brand" by National Bureau of Quality Inspection. Presently, we are the largest synthetic diamond production base and the leading enterprise of the superhard materials and intelligence manufacturing. The division of Huanghe Whirlwind superhard composite materials relies on the strong research strength of Powder Metallurgy Research Institute from Central South University and builds united development cooperation relationships with many universities and science research institutes who lead in the materials area inland. Our main products cover pick-series products, PCD (Polycrystalline Diamond), PDC(Polycrystalline Diamond Compact), PcBN (Polycrystalline Cubic Boron Nitride) and PcBN composite and related products, hard-surface intensive drilling tools and other series products. Our products are widely used in engineering &mining equipment, petroleum drilling, geological prospecting, coal field supporting& exploring and other industries. Nowadays our pick-series products have exploited the strong comprehensive strength of metal 3D printing in hard-surface processing field and won great outbreaks and many authorities of intellectual property rights, among which the newly-researched laser cladding pick series products, PDC pick series products, multi-cutters pick series products have the characters of super strong abrasion and high toughness. Above products have been used widely in the fields of engineering rotary drilling, coal mine exploring and tunnel boring. Our products have got high recognition from our customers for their high cost performance raised by times and obvious advantages under the complex working conditions.
