What is the main difference between the precision measurement of granite square rulers and cast iron square rulers?
The core differences between granite square rulers and cast iron square rulers in precision measurement stem from essential disparitiesr dimensions: material physical properties, precision stability, usage and maintenance, and applicable scenarios, directly determining measurement reliability and long-term precision performance. I. Material and Physical Properties ( Differences)Granite Square Ruler (Primarily Jinan Blue / Mount Tai Blue)Extremely…