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随着塑料新材料开发技术的日新月异,塑料正凭借其质量轻、设计空间大、制造成本低、性能优异等独特优势,成为21世纪各种工业产品最佳的
With the rapid development of new plastic materials technology, plastic is by virtue of its light weight, design space, low manufacturing costs, excellent performance and other unique advantages, as the 21st century, the best of all kinds of industrial products