... QUARTZ PRODUCTS: Quartz Beaker, Quartz Tube, Quartz Cuvette, Evaporator, Quartz Distiller, Quartz Tunnel 5. COATING: high anti-UV film, antireflective film, gold, aluminum, silver series quartz glass and quartz ... UV filters, curved reflector, filter glass and so on6. OPTICAL WINDOW: High windows, ultra-thin window, large ...