... ) Grain size: 0.5-0.6um 3) DIN or ANSI standard 4) ISO9001:2008 5) Coated or not coated... Changzhou Xili ... tons, with the production capacity of an annual output of 3, 000 tons of black Tungsten, 5, 000 tons of APT, 3, 000 tons ... , smelting, and milling, In addition, it and has the right to operate import and export....... Non-Standard Shaped Pieces of tungsten Carbide fabricated parts