Corn cob is made from high quality corn cob crushing processing through strict screening, cream-colored or yellow-brown, with a uniform organization, hardness suitable, good toughness, strong water absorption, wear resistance and other advantages, in use process is not easy to broken, organize uniform, suitable hardness, good toughness, strong water imbibition, wear-resisting performance is good wait for an advantage. Corn cobs can be divided into large, medium and small can be used with form a complete set of finishing equipment, drying equipment. Because the corn cob is rich in cellulose, hemicellulose, and lignin, etc., have been used in papermaking, biological sugar and other industries. As a carrier for the corn cob granule powder production of veterinary drugs shelf life for three years for stability, various indexes and microbial indexes meet the domestic and international standards, low cost, good and inexpensive.