tungsten evaporation boats

Tungsten Boats We provide a range of evaporation tungsten boats, molybdenum boats, tantalum boats for your vacuum coating system. Material: W1 Purity:>99.95% Density: 19.2g/cc Specification: 1)standard size, 210 W boats, 310 W boats,510 W boats,215 W boats,315 W boats,220 W boats,320 W boats,520 W boats 2)non-standard tungsten boats, customized according to user's drawing.