rub proofness造句

• The properties of product : may replace copper , the pakistan alloy and so on the nobie metal , has the fine self lubrication , the high anti - impact intensity and the bending strength , saves the spouse , the comprehensive cost low status merit , the rub proofness is copper2 - 3time , is hard4 - 6time
  产品性能：可代替铜、巴氏合金等贵重金属，具有优良的自润滑性，高耐磨性、耐腐蚀性、高抗冲击强度和弯曲强度，节省配偶件，综合成本低等优点，耐磨程度是铜的2 - 3倍，是铁的4 - 6倍。