欧美人与动人物牲交免费观看久久-国产午夜一级福利免费-业余 自由 性别 成熟视频 视频-国产成人经典三级在线观看-好爽好紧好大的免费视频国产-日本一道高清一二三四熟女-国产精品久久久久久久久久久久-美女扒开双腿让男人捅个爽-一区二区三区在线观看视频在线

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.