Estimated depreciable lives are as follows: motor vehicles, four to eight years; furniture and office equipment, three to ten years; machinery and equipment, three to ten years; and buildings and fixtures, eight years.
估计的折旧年限如下：机动车，4至8年；家具和办公设备，3至10年；机械设备，3至10年；建筑物和国定设施，8年。