https://castorco.com.au/blogs/news/castor-wheel-materials-compared 2026-11-09T18:54:03+11:00 weekly https://cdn.shopify.com/s/files/1/0634/4792/4945/articles/Multiple_Wheels_Castors_2.jpg?v=1794210843 Rubber vs Polyurethane vs Nylon vs Cast Iron Castor Wheels: Which Is Right for Your Floor?