... Good light transmittance Certification: ISO 9001, ISO14001, OHSAS18001This Halogen lamp used Quartz Pipe has the typical characteristics of hiht purity, good ... <22025528031535038590780%89919393939393.293.4Application: This large diameter quartz is widely used in halogen lamps, mercury lamps, single-ended lamp, automobile lamp ... Quartz Products Co., Ltd.Tel: 86-518-87512111 Halogen lamp used Quartz Pipe