... 5, Nice Appearances.. 1. purity : 99.99% min2. Shape : Both ends open/ One end close3. Resistance 1100 degree, 1000 long time ... , semiconductor,optical, photovoltaic,chemical industries· GOOD QUALITY· COMPETITIVE PRICES· ON-TIME DELIVERIES· GOOD AFTER-SALE SERVICEWe can also make tubes ... quartz rod, quartz plate, gray quartz tube, and so on. And we have further capacity of trim cutting, fire-polishing ...