The ruler includes parallel leveling ruler, bridge level, I–shaped ruler, square ruler, angle ruler, and special type ruler used for leading track of machine tools. The accuracy test of the workbench, test of precise parts, and machining with scraping process are the benchmark of precise measurement.

Straight edge Material: HT200-300	Parallel leveling ruler Material: HT200-300	Edge ruler Size: 500mm 750mm 1000mm
Bridge level	Angle leveling ruler	Casting lron square leveling ruler
Cylindrical square	Light leveling ruler	Magnadure measuring tool
Dovetail ruler	Magnalium square (Outer 90°)	Magnalium Wide-Stand square (Inner and outer 90°)