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High mechanical strength, high elasticres ilience, wide hardhess seale good in ternai resistance, good water and oil resistance, brasion resistance. 機(jī)械強(qiáng)度高，回彈性好，硬度范圍寬，有良好的抗內(nèi)生熱性，耐水性。耐油性、耐磨性和抗溶脹性。