Heavy duty industrial castor 1.double bearing raceway 2.size:6-12inch 3.practical beautiful and durable 4.capacity:350-800KG Heavy duty industrial castor1. Plate thickness :6mm2. Surface treatment:galvanized3. Size:6-12inch, load capacity:350-800kg4.Material: PU about 95A5. Double ball bearing6.Practical beautiful and durable7. Supply SGS and ROHS Certifactes.8.OEM service and design service. ...