The scrap material is not completely consumed in the original planned and designed production raw materials and in the process of manufacturing the product, and can no longer be used to process the remaining amount of the finished product under the product. Crushed materials and scraps. On May 1st, 2014, after the destruction of processing trade scraps, customs declaration is required. The trade mode code is 0400 (destruction of scraps). During the production and processing of production enterprises, a large amount of scraps should be destroyed.