... 4.Good light transmittance Certification: ISO 9001, ISO14001, OHSAS18001This Halogen lamp used Quartz Pipe has the typical characteristics of hiht ... -2.0mm wall thickness and 800-2400mm length. Exhaust tubes with good CPK are suitable for high-speed streamline production ... 4 Application: This large diameter quartz is widely used in halogen lamps, mercury lamps, single-ended lamp, automobile lamp, stage ...