GMP standard is strictly carried out in procurement, production, packaging, warehousing, and storage and transportation, as well as other links. Zhongying company is equipped with perfect detecting device, such advanced detecting device as AFS，GC，HPLC，UV is available in content determination, determination of heavy metals, determination of pesticide residue and determination of Microbiology of standards, which ensures our product quality reliable, stable and safe.

We are unmatched by competitors where quality and service meet.