... 350kgs *wheel width at 50mm H4 Heavy duty type double ball bearing swivel caster wheel Heavy Duty Caster /Four Size available (4'', ... ,high-heat resistant material ,conductive wheel7.Applications: supermarket, display racks, handcart, transport vehicle ,general usage in market or industrial, ... 72mm11mmPu on pp[Similar Products][Factory Display] H4 Heavy duty type double ball bearing swivel caster wheel