... .02.Used for HID lamps3.Machine blowingWe manufacture borosilicate lighting glass shell, The total output of machine-blowing hard bulbs, sealing ... quality of product, and has great competitive advantages in borosilicate glass areas.Useage: used for high pressure mercury light, metal halide ... , high pressure sodiun lamp, street light ..Type:We make hard glass shells for in T type, BT type, ED type, TO ...