... lights work fine, is a high-level quartz glass apparatus, which is the use of quartz glass itself is of high purity, chemical stability ... , as well as "aqua regia" and erosion, the "king of glass," said); non-staining material, is the semiconductor industry, environmental testing ... standards, the distilled water out to achieve "Chinese Pharmacopoeia" standard Quartz sub-boiling high-purified distiller