99.99% Pure Tungsten Carbide Pins High Purity Tungsten Needle For Medical

99.99% Pure Tungsten Carbide Pins High Purity Tungsten Needle For Medical

99.99% Pure Tungsten Pins High Purity Tungsten Needles for Medical Industry Product detail Quality standard: GB/T23272---2009,purity≥99.95% Specs of pure tungsten pins : Outer Diameter: 0.2mm-10.0mm ...