... analysis instruemts. Our hot types are: JB-500/750 Optical Emission Spectrometer, CS995/996 High-frequency infrared carbon&sulphur analyzer, JT ... , non-ferrous metal, metallurgy, machinery, chemical equipment, quality inspection system and so on. It is also used in blast furnace ... ,In the apparatus, there is an automatic constant temperature system which solve the problem of bad effects to the optics ...