Anyi Instrument Co. Ltd was founded a few years ago. But its founder, Mr.Wu Fengshan, a member of National Standardization Committee for Measuring Tools and Instruments, has worked as a techincal expert for more than 45 years for the major manufactures of measuring tools in China. With 45 years of experience in this field and his talent, he and his assistants have made remarkable achievements in making Standard Reference Artifacts. Precision Step Gauge Anyi-Step,which is every bit as good as its foreign equivalents, is only one of their masterpieces. The micron electronic caliper and height...