| 1. | By using a highly versatile engineering plastic material , featuring properties that are similar to metals and other plastics , the company will prefabricate aesthetically pleasing durable dental crowns , to exchange the stainless steel crowns used today , and which contain nickel , a proved allergenic
本公司运用一种与金属和其他塑料相似的多功能塑料材料，制造美观的耐用的牙冠，替代现在使用的含镍且易过敏的不锈刚牙冠。 |
