What is the material of wheels have ?

General materials of wheels include HPU PU, TPR, PP, PVC, Nylon, Rubber PH,PA etc. Polyurethane casters are a commonly used material. It is important to choose based on the applicable temperature, ground environment, move frequency and speed etc .

What is mounting type of casters have ?
How to choose load weight of casters wheels ?
The wheels diameter is larger is better can be pushed?
Which type bracket of casters have ?
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