Which brand is better, domestic digital micrometer or vernier caliper? Guilin Guanglu? Haliang Group? Or quantity?

1, Harbin Engineering Quantity (Harbin Engineering Quantity is the oldest measuring tool enterprise in China, and now it focuses on measuring instruments and machine tools. )

2. Liang Cheng (Liang Cheng is one of the three major factories aided by Harbin, and now it mainly focuses on cutting tools. )

4. Guanglu (one of the founders of Guanglu is Mr. Wu Fengshan, a famous expert in the measuring tool industry, who specializes in digital measuring tools and has the highest output in the world. )

5. Guangxi Quantity (one of the three factories aided by Harbin Quantity) is mainly composed of vernier calipers, and the chrome plating quality is good. )

Look at the problem comprehensively.