... We can produce many kinds of quartz tubes,quartz heater tubes the main products are as follows:clear fused ... blue/milky white/ corored quartz tubecarbon fiber quartz heater tubes, Far-infrared quartz heater tubes etc. Specifications:-OD:1.2mm-800mm - ... or according to customer requirement Applications:-Home heating and warming: Heater, cooking, oven, stove, baker. -Industrial drying: Painting, drying ...