废胎 meaning in English

discarded tire
discarded tyre

Using waste tyre as raw material , the " cryogenic rubber powder " performs better physical , technical and durable support for rubber products than those using 40 mesh activated powder . it also enhances the finishing of the end product because of its refined surface
以废胎为主材料制成的“深冷橡胶粉” ，对于制成橡胶产品的机能及耐久性，均比“ 40目活化胶粉”为佳，此外，产品有更光滑之外观。