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Other articles of vulcanized rubber other than hard rubber.
硫化橡胶(硬质橡胶除外)的其他制品。
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Meanwhile, waste fibers play a role in reinforcing a hard rubber material.
同时，废纤维对硬质橡胶材料起到增强作用。
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Meanwhile, waste fibers play a role in reinforcing a hard rubber material.
同时，废纤维对硬质橡胶材料起到增强作用。
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