Quartz plate is producted by natural raw materials, it is quartz glass available as continuous machine drawn and automatic controlled tubing.so, the glass has the typical characteriastics of high purity,good spectral transmission,weellcontrolled dimension and lower OH and so on.it serves as the first choice of heat resistant material for halogen lamps,mercury lamps,metal halide lamps and other quartz lamps.And,we can offer the products covering the shape,the diameter,the color and so on the customers need.