(4) Hardness: the hardness of natural crystal is large, and the stone is gently scratched on the jewelry, without leaving traces; If there are streaks, it's fake crystal.
However, the advantages of Low-E glass extend beyond energy efficiency. When combined with safety features, it becomes an invaluable asset in construction. Safety glass is engineered to withstand impact better than standard glass, making it an essential material in environments where security and durability are paramount. Low-E safety glass is produced using processes such as tempering or laminating, which increases its resistance to breakage and shattering. In case of an impact, the lamination helps hold the glass shards together, reducing the risk of injury—a crucial consideration in public and high-traffic areas.