When two or more products of equal economic importance arise in the course of processing and none of them can be treated as major product they are known as

Joint Products are the products when two or more products arise simultaneously in the course of processing, each of which has equal significant sales value and so neither/none of the product can be treated as a major product. For example in the process of meat processing meat,hides, bones etc. arise simultaneously each of which has equal significant sales value or economic importance.