Lianyungang Hongyang Quartz Products Co., Ltd. is situated at Donghai county, Lianyungang city. As you know Donghai is famous for its rock crystal production and popular as the city of crystal in ***** we mainly make products as follows: High pure crystal powder , Carbon Fiber Quartz Heating Tube , Black Quartz Tube , Yellow Quartz Tube , Red Quartz Tube, Ozone free Quartz Tube, Milk white Quartz Glass Tube, Clear Fused Quartz Glass Tube, Quartz Rod, Ultraviolet filtrating, ect.