ZHGONGBO HEAVY INDUSTRY is a professionally managed company engaged in manufacturing Cast Iron guide rails /granite surface plate/inspection equipment/cast iron surface plate/cast iron bed plate/ cast iron angle plate/Cast Iron Straight Edge/cast iron box angle plate/Cast Iron V-blocks/cast iron test beds along with 3D measuring & layout machines. With a vast customer base, the company has been always been in the pursuit of excellence in its products. A customer who is once a customer of ZHONGBO is always a customer.