小雪被老外黑人撑破了视频-色视频线观看在线网站-国99精品无码一区二区三区-成人久久久久久久久久久

  • CSB-J20

    Material Structure:      Steel+Sintered Tin Aluminum Alloy

    Application Features:  The material has good oil corrosion resistance feature. It is smooth and has outstanding imbedibility and anti-seizure performance. The working surface is not needed to be coated. 

    Typical Applications:   Middle to Low Load Motors, Crankshaft of Air Compressors and so on.