... machinetool,metallurgical equipment etc.Meantime, we also supply related products in blank, such as cylinder liner,piston ring,ADI bushing,sealing ... sand casting,and no pore,sonim... Adapt to strict requirments in precise manufacturing. Application fields: FieldPart name machine tool sleeve , ... , steering pump stator, gear Mine mechinanismwear resist sleeve, engine cylinder racing car cylinder liner