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。
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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