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 company has passed the ISO9001 international quality& management system certification. 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 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-cutterspick series products have the characters of super strong abrasion and high toughness. Above products have been used widely in the fields of engineeringrotary 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.