1.High purity 2.High temperature resistant 3.Good corrosion resistant 4.Good light transmittance Certification: ISO 9001, ISO14001, OHSAS18001 This clear quartz water sleeve has the typical characteristics of hiht purity, good spectral transmission, well controlled dimension and lower OH and so on. It serves as the first choice of heat resistant material for halogen lamps, mercury lamps, metal ...