岛国无码av不卡一区二区,国产日韩欧美久久精品,日本亚洲国产在线视频,97在线视频免费人妻,98色噜噜刺激有声小说,A级毛片无码久久精品免费,午夜无码一区二区三区在线观看,国产精品亚洲αv天堂无码,日本一区二区在线播放,人妻精品久久无码区洗澡

Automobile leaf spring (automobile leaf springs), also known as leaf spring, the northern region is commonly known as steel plate. When the steel plate spring is installed in the automobile suspension, when the vertical load is positive, each spring piece is subjected to force deformation, and has the tendency of upward camber. At this point, the axle and the frame are close to each other. When the vehicle axle and the frame are far away from each other, the forward vertical load and deformation of the leaf spring gradually decrease, sometimes even reverse.