... white kinescopes, aluminum spraying, plastic spraying and s Twisted Tungsten heater electric vacuum parts, colorful or black and white kinescopes, aluminum spraying ... : TungstenSize:0.3-0.8mm diameter.Wire Quantity:2-4pcsApplication: electric vacuum parts, colorful or black and white kinescopes, aluminum spraying ... supply them according to the drawing from the customers. tungsten heater