Physical: hair, finger nails, nuts & bolts, plaster, earrings, nail varnish, rat droppings, Chemical: detergent, bleach, paint, ant powder, oil, Biological: mould, E-Coli, Salmonella, Listeria, Staphylococcus Aureus, viruses,

Types of contamination

排行榜

视觉风格

选项

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