Maanshan Hui Zhi Biotech Co., Ltd. Company the whole production process from the feed - processing - inspection - factory - all aspects of after-sales service in strict accordance with the requirements of ISO quality system to operate. Effective quality management system to ensure strict compliance with every procedural requirements of GMP, in addition, through advanced precision testing instruments to ensure product quality and perfectly safe, detailed and complete records of each batch of products to ensure product quality and stability.