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Taian City Sincere Steel Balls

Plastic ball

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Plastic balls of different specifications

Plastic balls of different specifications

Acrylic resin appears as colorless, cylindrical granules with a smooth surface. The particle size ranges from 2 mm to 5 mm in any direction, and the particles are free of mechanical impurities. The powder form is off-white, non-caked, and qualified products may exhibit a slight yellowish tint. Polypropylene resin is non-toxic, with a density ranging from 0.90 g/cm³ to 0.91 g/cm³—making it one of the lightest among common plastics. Polypropylene resin boasts excellent mechanical properties and heat resistance, with a usable temperature range from -30°C to 140°C. It also exhibits outstanding electrical insulation performance and chemical stability; it virtually does not absorb water and remains inert when in contact with most chemicals. However, it exhibits corrosive effects upon contact with fuming sulfuric acid, fuming nitric acid, chromic acid solutions, halogens, benzene, carbon tetrachloride, chloroform, and other similar substances.
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