23 Jul 4 inch Industrial Casters- Semi Steel Cast Iron Swivel CastersCapacity400-1600LB
HEAVY-DUTY CASTERS: The heavy duty casters are made of high-quality Cast Iron, bright galvanized steel wheels and yokes. The Heavy Duty Caster wheels are highly compressed sintered iron，also have strong abrasion resistance, are not easy to rust, and have strong shock absorption and buffering performance,...