由国家经贸委、国家质量技术监督局等六部委起草并发布的《农业机械产品修理、更换、退货责任规定》(以下简称“三包规定”),于1998年9月1日正式实施。该“三包规定”涉及的农业机械产品覆盖了农业、牧业和水产养殖业的12类75种产品,科学合理地界定了农机产品修理、更换、退货的处理方法,使农机销售企业的售后 The Regulations on Repair, Replacement and Return of Agricultural Machinery Products drafted and promulgated by the six ministries and commissions including the State Economic and Trade Commission and the State Bureau of Quality and Technical Supervision (hereinafter referred to as the Three Guarantees Provisions) were put into effect on September 1, 1998 . The agricultural machinery products involved in the “Three Guarantees Regulations” cover 12 types and 75 kinds of products in agriculture, animal husbandry and aquaculture, and scientifically and rationally define the methods for repairing, replacing and returning farm machinery products so that the agricultural machinery sales enterprises After sale