... temperature resistancecorrosion resistancegood transparencequartz production include:quartz tube,quartz rod,quartz casing,quartzwater jacket,quartz ... various quartz bend,bulboid type quartz tube , special-shaped quartz tube, low ozone quartz ultraviolet sterilization ... shui people thermostat,disinfection equipment,heating tube,water treatment,metal halide lampsand using in environmental protection, ...