Product Name: Granite Surface Plate with T-Slot Model NO.: 300*300mm ~ 6000*3000mm Material: Black Granite Trademark: JINGDA Transport Package: Wooden Case Specification: 300*300mm ~ 6000*3000mm Origin: China Product Description Our granite measuring devices and granite mechanical components are made of high quality "ji nan qing"granite due to their high precision,long duration,good stability and corrosion resistance,they have been more and more used in product inspection of modern industries and such as high-tech areas,mechanical aerospace scientific researches.The precision of the JINGDA granite surface plates are in line with the standards of the advanced countries.In addition to our standard surface plate sizes,we will quote any other sizes requirments you may have.We will also make modifications to your plate,which includes t-slots,inserts,holes,etc.All the standard sizes are in store and the special sizes can be customeized according to your requirments.It is used for testing the flatness of workpiece.Special design can be customized.Granite measuring tools have the following characteristics:1.High precision reliable stability resistant to guarantee accurancy under normal ambient temperature.2.No-rust and anticorrosion3.Wear resistance long service4.Any working surface cutting and scratching does not bring about rough edges which might influence its measuring precision.5.Nonmagnetization.6.Glossy surface without sluggishness when the workpieces or tools are moving on it.These advantages make granite surface plates inherently stable and unmatchable against any other material.These plates are supplied computerised calibration certificate traceable to national physical laboratory.SpecificationLength×Width×Thickness (mm)Weight (kgs)Precision Grade (μm)0000001300×200×50171.53612300×300×50191.53612400×300×70251.53612400×400×704823.56.513630×400×1007623.5714630×630×10015524816800×500×130156248161000×630×1302842.54.59181000×750×1503382.559181000×1000×1504502.5510201600×1000×2009633612242000×1000×20012003.56.513261600×1600×30023123.56.513262000×1600×30028903.5714282500×1600×30036124816323000×2000×50090304.5918364000×2000×500120405.51122446000×2000×700252847.5153060Special designPackage and transportation