opaque quartz tube

Opaque quartz tube
1.melting point is 1000 degree centigrade
2.pectral transmission at 500nm is less than 10%
3.widely used in heater,microwave oven,electrical baking oven,sterilization container and so on
4.outer diameter is between 4 and 50mm
5.wall thickness is between 0.5 and 5mm