说明
Bracket: Made of pressed steel. Bolted wheel axle. Zinc-plated, blue-passivated, Cr6-free. Tyre & running tread: Made of high-quality thermoplastic polyurethane, low-noise operation, low rolling and swivelling resistance, good floor preservation, very high abrasion resistance, chemically bonded for an inseparable connection to the wheel centre. Wheel Made of high-quality, impact-resistant nylon. Chemically bonded. Bearing type: Plain bor