... etc. established on 1992,Supply for IKEA,SHARP,etc. The heavy-duty castor information:Wheel: PA / PPFork: high grade Q235 steel ... temperature: -20~90Wheel hardness: 90 +/-5AType: swivel,ragid with side brakeMounting: bolt hole,top plate,threaded stem and grip ... to resist corrosion,bruise and dent4.suitable scope: heavy-duty appliance, shelf appliance,factory workshop,etc. 2010 new heavy-duty castor