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Circular Films
Our FitWell series
Our circular film, also known as donut tubing, is made of polyamide, boasting thermal stability and exceptional flexibility. Primarily designed for application in the bicycle rim industry, it has the following outstanding characteristics:

1. The circular shape is optimal for rim compatibility, minimizing wrinkles during tubing installation and enhancing inner wall smoothness.

2. Effectively prevents uneven resin accumulation

3. All features are fully customizable


Understanding the diverse needs of our clients, we also offer a release-agent-free version of our circular film.

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