B series pressed steel, zinc-plated, blue-passivated, Cr6-free Wheel: POEV series Tire: high-quality elastic solid rubber "Blickle EasyRoll" in smooth rolling quality, hardness 65 Shore A, color blue, non-marking wheel center: high-quality nylon 6, impact resistant, color black Other features: with synthetic thread guard, small high chemical resistance to many aggressive substances, except oils operating temperature: -4 °F to +176 °F, temporarily up to +212 °F, reduced load capacity over +95 °F
