Bambo's the most common material, but they are also made of various types of wood, as well as plastic, porcelain, and animal bone.

竹子是最常见的材料，但它们也可以用各种各样的木材、塑料、瓷器、动物的骨头做成。

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Gray cast iron is a common material for the part of the agricultural machinery.

灰铁为农机零件常用材料，磨损是灰铁零件最常见的失效形式。

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The most common material used for motorcycle leathers is Cowhide , chosen for its strength and durability.

最常见的材料是牛皮皮革摩托车、选择的力量和耐力。

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The researchers report in Biomacromolecules that their new material matches the stiffness, strength and compressibility of expanded polystyrene, a common packaging material that is the bane of many a rubbish dump.

ECONOMIST: Plastics: There and back again | The

Asphalt shingles ( the most common roofing material in the U.S.) can become loose, cracked, be blown off by the wind or be damaged by hail.

FORBES: The Hidden Costs Of Home Ownership

They run on Thorium, a mildly radioactive material more common than tin and found all over the world.

FORBES: UK Parliament Group to Study Thorium Reactors