Jianjia has its independent testing center equipped with ultraviolet-infrared spectroscopy, atomic absorption spectroscopy, gas chromatography, high-performance liquid chromatography, and a microbiological testing center, along with a central laboratory.

All raw and auxiliary materials, production water, intermediates, and finished products undergo comprehensive, systematic, and standardized testing. This ensures that:

Unqualified raw materials are not stored,

Unqualified intermediates do not proceed to the next stage,

Unqualified finished products are not released for sale.

This rigorous quality control system guarantees the highest standards throughout the entire production process.