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Wheels Heat-resistance, Abrasion-resistance, Anti-static polyurethane coating  | 
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 Polyurethane tread - PTMEG | 
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 Heavy Duty MC-Nylon wheels | 
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 Medium Duty Nylon-6 wheels | 
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 Polyurethane tread - TPU | 
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Numbering System of Wheels Heat-resistance, Abrasion-resistance, Anti-static polyurethane coating  | 
| UW | Polyurethane wheel | |
| UWE | Anti-static polyurethane wheel | |
| MCW | MC nylon wheel | |
| NW | Nylon wheel | |
| SW | Steel wheel | |
| AW | Aluminum wheel | |
| G | With bearing | |
| For example | ![]()  | 
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