... resistant 4.Good light transmittance Certification: ISO 9001, ISO14001, OHSAS18001This large diameter quartz tube has the typical characteristics of hiht purity, good ... can be supplied in the range of 3-80mm outside diameter, 0.6-2.0mm wall thickness and 800-2400mm ... 10107.5×10107×1010permittivity(@1MHZ)3.755.86 Application: This large diameter quartz is widely used in halogen lamps, mercury lamps, ...