亚洲天堂网址,人人插人人舔,丁香在线,济公电影国语版在线观看完整版,国产成人综,我的小确幸免费电视剧在线观看,谁有完整版的色戒

machine utilizes dynamic balancing principle, through computer measurement control system to find out the central principal axis of inertia (normally called mass central axis) of the crankshaft roughcast and machine center holes on this axis. Mass centering machine can effectively reduce the initial imbalance of the crankshaft machined, thus improve the final balancing accuracy and efficiency of the crankshaft. Reducing initial imbalance is very important to crankshafts with balancing clump weight. Less imbalance means less mass reduced from the balancing clump weight during balancing and alignment, so as to guarantee the internal mass compensation in regard to structure design of the crankshaft.