Metric System and Imperial System/ mm and inch
The metric system is calculated in millimeters, and the British/Imperial system is calculated in inches. Metric system: also known as “meter system”, an international measurement and constant system that entered China after the signing of the “Sino-French Commercial Regulations” in 1858. It was founded in France. The metric system uses meters, centimeters, decimeters, millimeters, and […]
