(铝合金平开门材料生产厂家)

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1. （17） YL117合金 YL117合金相当于美国的B390.0合金，是美国应用较广的过共晶Al-Si压铸合金，具有良好的流动性，中等的气密性和好的抗热裂性，特别是具有高的耐磨性和低的热膨胀系数，主要用作发动机机体、刹车块、带轮、泵和其他要求耐磨的零件.