... ball number 400~600/mm2 ---compare sand casting, at same strength, elongation increase 50~100%2.ADI ... Thickness:8-35mmOur profiles could be widely used in mechanical industries,such as railway vehicle, oil ... equipment etc.Meantime, we also supply related products in blank, such as cylinder liner,piston ring,ADI ... pore,sonim... Adapt to strict requirments in precise manufacturing. engine cylinder sleeve