Biodegradable Accordion Bags,Compostable Accordion Bags,Biodegradable Accordion Folder,Biodegradable Organ Bags DongGuan Sengtor Plastics Products Co., Ltd. , https://www.sentebio.comThe ISO9000 standard was published in 1987 and revised once in 1994. The writings of the 94th and 87th editions are basically adapted to the processing industry and are written according to the process of processing industrial products. The 2000 version is used by all walks of life, so it is revised, especially the service industry. The old standards are not suitable for the service industry (such as: what is unqualified, inspection, production, etc.). The version is much better.