The accuracy of the guide rail inspection marble platform is divided into Grade 1, Grade 0, and Grade 00
Detailed Explanation of Precision Grades for Marble Platforms Used in Guide Rail Inspection (National Standard GB/T0428-2006 “Stone Surface Plates”) Complete Grade Sequence: Grade 000 > Grade 00 > Grade 0 > Grade 1, with decreasing step by step and flatness tolerance doubling; core reference for selecting linear guide rails, precision sliding tables, and linear motor…