Apply for 3.3 high borosilicate glass tube .Lighting go through the glass tube is very high.Glass tube can endure the high tempe

Apply for 3.3 high borosilicate glass tube .Lighting go through the glass tube is very high.Glass tube can endure the high temperature of heating of heating end reaches 820. After heating up 260 degrees, the put in the 0 water is not explode.