... TubeDoped with trace elements,the red quartz tube,dark red and pink red available,is able to prevent all the UV rays and ... oven,surface drying,automobile paint baking ,etc. Propertues:Infrared quartz tube doped with trace elementshas lustrous apearance,brilliant color,and ... the same property of heat processing with quartz tube. Appilication:It is another good material for far ...