Hubei Fotma Machinery Co., Ltd.

China‑based Hubei Fotma Machinery Co., Ltd. lists 62 active products covering a spectrum of high‑purity refractory metals and precision tooling. The catalogue spans pure molybdenum crucibles for sapphire growth (HS 8102.95), tungsten carbide cutters for woodworking (HS 8207.90), copper‑tungsten alloy bars and heat‑sink plates (HS 7403.29 and 8101.99), tungsten wires used as heating elements (HS 8101.96), and a variety of wear parts such as carbide bushes and rotary burrs (HS 8207.19, 8207.90). Additional items include tungsten heavy‑alloy rings (HS 8101.94), copper‑tungsten electrical contacts (HS 8101.99), and specialized coal auger bits. Each entry specifies material grades such as K20‑K40 cemented carbide, Mo 99.9 %+ and W 99.95 % purity, reflecting the supplier’s focus on advanced industrial applications.

The product list concentrates on tungsten and molybdenum families that are standard in high‑temperature and high‑density applications. Typical grades for tungsten carbide tools are K20, K30 and K40, where the numeric suffix denotes increasing cobalt binder content and hardness values from approximately 1 200 HV to 1 500 HV. Pure tungsten wires are offered in diameters from 0.02 mm to 2.0 mm with a minimum purity of 99.95 % and are commonly supplied to meet ASTM B211 specifications for tensile strength and elongation. Copper‑tungsten alloys appear in 70/30, 80/20, 85/15 and 50/50 compositions; these ratios define thermal conductivity (≈120 - 150 W·m⁻¹·K⁻¹) and density, which are critical for heat‑sink and spark‑erosion tooling. Molybdenum plates are provided in thicknesses from 0.05 mm to 10 mm, matching the ASTM B735 rolled‑annealed standards used in furnace linings and semiconductor equipment.