About Granite and Casting Plates and Accessories-Quality / High Precision
 Since its establishment, INSTRO-Niigata Seiki has been working to meet our customers' needs in the most accurate way without compromising on high quality.
 We manufacture Granite Plates (Granite Surface Plates) depending on the needs of our customers. Laboratory tests have shown that fine-grained black granite is stronger, denser and less absorbent than other granite plates. Therefore, precision machine-carrying surfaces, fixtures and similar measuring accessories are manufactured from black granite plates.
 When choosing a granite plate, experienced INSTRO personnel will accurately analyze your requests in terms of accuracy, precision (Grade 0, I, II…), accessories, purpose of use and price and recommend the product that will meet your needs.
 Its compliance with JIS and DIN international standards has been verified and proven many times.
 INSTRO-Niigata Seiki uses Japanese craftsmanship and production to provide users with the highest precision products in its series.
 INSTRO Niigata Seiki Granite Plates and Plate Stands are manufactured to meet all your different measurement needs in different places.