... +/-0.6*T 3.5-4*1200+/-1mm 2.Used within1100Degrees 3.Inventory spot, short processing 4.Purity: 99.99% 5 ... supporting materials, high-quality quartz glass products and the production of electric light source, sterilization, chemical pipeline, heating equipment, ... years, my company attaches great importance to the work of innovation of science and technology, every year more than 2MillionRMBindependent ...