Calibration standard for granite flatness and parallelism
Full Calibration Standards for Flatness and Parallelism of Granite (Stone) Surface Plates I. Core Execution Standards (Currently Effective in China) II. Flatness Standards (Core Tolerances Calculation Formulas) Table Grade Coefficient K Typical Application Scenarios Grade 0 4 CMM, precision instruments, optical references Grade 1 8 Molds, precision machining inspection Grade 2 16 General machining, fitter…