... .Load capacity: 35~45kg per caster 2.Wheel diameter:50~60mm3.Caster material: Nylon,pressed steel,zinc plated4.Chrome, ... zinc or nickel plating available 5.Matches with different fittings such as swivel ... different usage, such as, for industrial machine, medical facility, furniture, trolley, shopping cart, forklift, scaffold, shelf, etc.Welcome ...