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地中海ium duty caster wheels
series combines 3 inch / 4 inch / 5 inch and even 6 inch wheels with 60 kg -150 kg load capacity,and different installation with Top plate / Threaded stem / Bolt hole / Inserted link casters and wheels,very popular for theplatform trolley,hand cartetc. They are also called astrolley wheelssince they are used with trolley carts, but the medium duty one. We also have many kind of different material for wheels, polyurethane, plastic, pvc, rubber, tpr, nylon etc. Depends on your desire. And we can customize color, logo, package for you too.