BACKGROUND: Current commonly used bone graft materials include cancellous bone or bone blocks from ilium, tibia, fibula and others.

背景：现今临床上常用的自体植骨材料多为髂骨、胫骨、腓骨等部位的松质骨块或骨碎块。

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Materials commonly used include copper, asphalt, plastic, rubber, composition, and combinations of these materials, Bid the gauge of thickness and width specified.

常用物料有铜、沥青、塑料、橡胶混合而成，和投标指定的厚度和阔度。

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