... high grade Q235 steel yoke Loading capacity: 45kg,60kg Wheel diameter: 50mm,75mm caster:Wheel: black hard rubberFork: high grade Q235 steel yokeLoading ... platedApplicable temperature: -10~60Wheel hardness: 70 +/-5AType: swivel,ragidMounting: top plate,threaded stem and grip stemFeatures:1.caster: rigid caster, swivel caster2.rubber ... ,factory workshop,industrial trolley,etc. 2010 new light-duty caster