Quartz glasss tube/Infrared milky quartz tube with as below advantage, and be the best choice for infrared heating element. 1. With Infrared radiation, and the transmissivity of infrared is arrived to 70-75% 2. With out surface coating and infectant, is a excellent chemic products 3. With high heat stability and high temperature resistant. 4. Can be make by various shaped, and ametabolic long using. 5. Heating temperature selective, as well unchangeable radiation ability in long term. 6. Structure reasonable 7. Make used of convenient. OD10mm*1mm*2500mm OD10mm*1mm*2250mm OD23mm*20mm*2250mm.