UV-d Model yellow quartz tube, whose surface is yellow and cross section is deep yellow, can filter all the UV rays of invisible light. It is the important material for making optically pump which is the main part of Laser generators. This kind of product can not only prevent work material’s color center and Optical distortion but also reduce corrosion to the Silver reflector. For Substantial increasing in the occurrence of laser efficiency, It plays an irreplaceable role.(The OD includes10mm, 12mm, 14mm, 16mm, 110mm.)