... dia: 50, 60, 75, 90 3) Load capacity: 100kg 4) Heavy duty caster Feature:1) Wheel material: PU Wheel color can be ... plate material: Nickel plated steel4) Load capacity: 100kg/PC6) Heavy duty caster for medical treatment, military, aerospace and so on.7) High quality ... with international quality standard ISO 9001-2000. black pu Industrial heavy duty swivel caster wheel