Hand - scraped cast iron surface plate Usage (1) Suitable for various inspections and benchmark planes for accuracy measurement. (2) Used widely as the measurement benchmark for machine tool inspection and to inspect the dimension accuracy or running difference with the function of performing precise lineation. (3)It is an essential measuring tool in machine manufacturing. Cast iron surface plate mainly used for machinery, machine tool board manufacturing, electronics, electric power, all kinds of industries, Most commonly used in industrial production Materials and Processing: (1) The material of our surface plate/table is cast iron HT200-300 (2) Working surface hardness is HB170-240 (3) Low inaccuracy error and good in grinding resistance. Precision According to the national standards measurement examination regulations execution, respectively is 0,1,2,3, fine polish. Notice for use 1: To the best uniform use of the flat plate throughout, to avoid local grinding concave. 2: Keep the plate clean,  prevent be wroned by iron scrap, sand ... 3: Put down workpieces on the plate gently, prevent the flat surface be impacted, once the plate surface hit the workpiece or other objects,repair impact and the convex part immediately. 4: Do not do any hammer work on the surface plate . 5: After use, should be clean it. If long time no use should not be coated with anti rust oil to prevent corrosion. Our service OEM/ODM available: Your logo on the product. Customized product according your drawings. Any your idea on product we can help you to design and provide drawing. After-sale Service All products will have been strictly quality checked in workhouse before packing. We can take over the mounting or clamping activities or mounting plan. We provide the finished project report.Including Contract,Drawings,Quotation Sheet,Proforma Invoice,Technical Description,Manufacturing Progress Control Schedule,Test and Inspection Reports,B/L, Insurance, Commercial Invoice, Packing List, Certificate of Origin.