Heat Resistant Amber Glass Tube for Cosmetics Use

7.0 Amber heat-resistant glass tube   7.0 Brown Amber Glass Tube is a high-quality opaque glass substrate suitable for various scenarios such as medicine, beauty, and industry. It is made using mature low borosilicate melting technology and has a stable thermal expansion coefficient of 7.0 × 10 ⁻⁶/℃. Combined with 510 ℃ high-temperature annealing and shaping process, the tube structure is uniform and dense, with balanced hardness and toughness, effectively avoiding cracking and deformation problems during processing, transportation, and storage. It is suitable for various precision deep processing production. This glass tube continues the medical grade production standards and has excellent physical and chemical properties such as particle water resistance, surface water resistance, and acid resistance. The material is pure and free of impurities, with no harmful substances released, safe, non-toxic, and odorless. It is not only suitable for traditional pharmaceutical packaging, but a…