Caster ƙafafun sun ƙunshi nau'ikan abubuwa daban-daban, waɗanda aka fi sani da nailan, polypropylene, polyurethane, roba da simintin ƙarfe.1.Polypropylene Wheel Swivel Caster (PP Wheel) Polypropylene abu ne na thermoplastic wanda aka sani da girgiza r ...
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