Product Name: Granite Surface Plate Model NO.: 300*300mm ~ 6000*3000mm Standard: Jjg117-2005 GB/T20428-2006 Material: Black Granite Trademark: JINGDA Transport Package: Plywood Case Specification: 300*300mm ~ 6000*3000mm Origin: China Product Description Granite Surface Plates are used for precision gauging, inspection, layout and marking purposes. They are preferred by Precision Tool Rooms, Engineering Industries and Research Laboratories because of their following outstanding advantages.-Well-selected granite materials-Nice stableness.-High intensity and rigidity-Grade 1, 0, 00 are available.-T-slots or thread holes can be made according to the requirementsAll the standard size are in store and the special size or design can be made as your requirement.As amanufacturer, we will supply you the most favourable price and top-quality service. Your inquiry is highly appreciated.SpecificationLength ×Width ×Thickness (mm)Weight (kgs)Precision Grade μm0000001300 ×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 ×700252847.5153060