Henan Huanghe Whirlwind. 

Henan Huanghe Whirlwind Co., Ltd. engages in the manufacture and sale of carbon-based new materials in China and internationally. The company offers super hard materials, such as synthetic diamonds; mechanical and electrical manufacturing, including electric motors, synthetic diamond accessories, electric control systems, construction machinery, tower cranes, communication towers, diamond grinding blocks, diamond drill bits, drill pipes, and abrasive tools; superhard composite materials comprising diamond composite sheet series, pick series, PcBN composite sheet and cBN polycrystalline series, and super hard grinding wheel series; superhard cutting tools, such as diamond and other superhard material cutting tools; precision tool materials comprising polycrystalline diamond composite sheet; superhard grinding wheel material manufacturing, including diamond micropowder, wire saw micropowder, diamond crushing material, cubic boron nitride single crystals and micropowder, and superhard material coatings; metal powder, such as pre-alloyed powder for super hard material tools, alloy powder for diamond synthesis, powder for flux-cored wire, stainless steel powder, bronze powder for oil-containing bearings, and powder for thermally conductive materials; united cyclone, such as diamond beads, diamond wire saws, diamond saw blades, and diamond drill bits; and wire saw comprising silicon squaring wires, silicon slicing wires, and sapphire slicing wires. The company was founded in 1998 and is based in Changge, China.