高负荷铸铁工业重型6英寸固定轮脚轮150毫米板 - Buy High Load Cast Iron Industrial Heavy Duty 6 Inch Fixed Wheels Caster 150mm Plate industrial Medium Duty Cast Iron Trolley Wheel 2 Inch Swivel Wheels Caster Wholesale wholesale Super Heavy Cast Iron Duty Caster Wheels Super Heavy Cast Iron Duty Caster Wheels Caster Wheels wholesale Super Heavy Cast Iron Duty Caster Wheels cast Iron Universal Wheel Universal Wheel Product on Alibaba.com