设计组甚至提出去掉车门和车身用塑料取代钢材的主张。
The team even asked whether there was a need for doors and whether plastic instead of steel could be used for the bodywork.
它的强度是普通塑料板材的几倍，强度大于钢材和铝材。
The strength is several times than normal plastic plate, steel and aluminum.
经改善钢材质量、采用塑料保持架、改进挡边结构及凸度滚子的应用，可使圆柱滚子轴承的寿命和性能大幅度提高。
By improving steel material quality, adopting plastic cage, improving rib structure and using crowned rollers, the life and performance of cylindrical roller bearing can be largely increased.
这类新材料的价格和高端钢材一样，但可以像塑料一样十分廉价地进行加工。
The new materials cost around the same as high-end steel, but can be processed as cheaply as plastic.
详细介绍了塑料模具钢材的选材要求及目前的国内和国外模具厂常用的模具材料种类及使用情况。
Introduced how to choice plastic mold steel, and usual used mold steel and using situation in home and overseas mold factory were stated in detail.
介绍了我国新研制的塑料模具用钢的性能和应用概况，并与国内外常用的塑料模具钢材进行了比较，以便在不同使用状态下合理选用模具材料。
The performance and application of plastic die steel made in our country are introduced and compared with others domestic or abroad for reasonable selection in different cases.
Best精心挑选了符合欧洲e1级环保标准的塑料材料和性能良好的钢材用于制作桌椅面和桌椅脚。
Best selected the plastic material in line with the Europe E1 standard and the steel material with good performance carefully, used to manufacture the desk top and desk bases.
Best精心挑选了符合欧洲e1级环保标准的塑料材料和性能良好的钢材用于制作桌椅面和桌椅脚。
Best selected the plastic material in line with the Europe E1 standard and the steel material with good performance carefully, used to manufacture the desk top and desk bases.
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