Plastic chain plates are categorized by material: polypropylene, polyformaldehyde, and polyethylene.
12.5mm, 15.2mm, 19.05mm, 25.4mm, 31.75mm, 27.2mm, 38.1mm, 50.8mm, 57.15mm
By environmental standards: Food Grade, Non-Food Grade

Based on performance: High-temperature resistant, oil-resistant, type, acid and alkali corrosion-resistant