But celluloid, which had developed a reputation as a cheap mim-ic of better traditional materials, was de-rived from chemically treated cotton and other cellulose-containing vegetable matter.

众所周知，赛璐璐虽价格低廉，能仿制质量较好的传统材料，它却是取自化学处理的棉花和别的含有赛钱璃纤维素的蔬菜之中。

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Copper alloys for lead frame are becoming leading factor in the lead frame materials for IC, because of its high strength and high conductivity.

铜合金引线框架材料因其高强高导电性能而成为集成电路框架材料的主体。

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Mobile power sets of materials, batteries, programs, wire, packaging, PCBA, lithium battery management IC;

移动电源套料，电芯，方案，线材，包装，PCBA、锂电池管理IC；

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