The vials manufacturing industry is a subdivision of the glass containers manufacturing industry. Companies in this industry are involved in the production of small glass containers, typically used for storing medication, perfumes, and other liquids. Vials can come in a variety of shapes and sizes, and are often made to be airtight to prevent contamination or evaporation of the contents. The manufacturing process involves several steps, including glass melting, molding, annealing, and finishing. Quality control is also an important aspect of vial production, as the containers must meet strict standards to ensure the safety and efficacy of the products they hold.