A new road marking paint was prepared with HCPE as its main film forming substance. its formula, manufacturing process and main performance indexes were introduced.
以高氯化聚乙烯（HCPE）为主要成膜物质配制了一种新型道路标志漆。介绍其配方、制作工艺及主要性能指标。
Key unit, method for marking key top, and method for manufacturing key unit using the same.
键单元，在键帽上打标的方法，和用该打标方法制作键单元的方法。
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