We make hard glass bulb for street lamp in T type, BT type, ED type, ... , high pressure sodium lamp, street light.Type:We make hard glass for in T type, BT type, ED type, TO type ... ,T46X290,TO46,ED55,ED75,ED90,ED120,BT90,BT120Material: high borosilicate glass, hard glass We will carry out high quality, competitive price, prompt ...