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See Chinese contents: GB/T 42800-2023 GB/T 42800-2023: High purity opaque quartz glass
This document specifies the classification, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of high-purity opaque quartz glass. This document is applicable to high-purity opaque quartz glass materials with thermal insulation in semiconductor, photovoltaic, and other fields.
