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The red quartz glass tube is one of our characteristic products, which only can be made by our company in China. It is also advantage products in our company. The first domestic development and batch production of red quartz tube in quartz glass industry have originality and sophistication. With several trace elements added, it can stop UV and part of light, which can make full use of infrared ray. We have three colors for your choice .It is pink, wine red and black red. Diameter: 6mm-20mm ,wal