Metal detector subcategory for preventing metal contamination and quality control in manufacturing sites. Handles industrial metal detectors used for product inspection in food production lines, pharmaceutical manufacturing processes, and chemical plants. Includes various types according to manufacturing processes such as conveyor-integrated, handheld, and pipeline types, featuring high-sensitivity detection devices capable of detecting ferrous, non-ferrous metals, and stainless steel. Equipped with specifications specialized for manufacturing quality control requirements including HACCP compliance, dustproof and waterproof specifications, and automatic rejection functions. Distinguished from general security metal detectors and medical inspection equipment, limited to foreign object inspection equipment dedicated to manufacturing processes.