poly(ethylene terephthalate)
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| Polyester Short-cut Fiber（used in road） | |||
| Items | Premium-grade | 1st-grade | Eligible-grade |
| Tensile strength, Mpa ≥ | 580 | 540 | 500 |
| Melting point, ℃? | 250 | ||
| Breaking length, % | 35.0±8.0 | 35.0±9.0 | 35.0±10.0 |
| Diameter, μm | 17.0±5.0 | ||
| Appearance | White | ||
| Number of crimps, No./25mm | None | ||
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used in road
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