Shengjiu always complies to international management systems to guarantee the product quality.

Laboratory management system
Shengjiu laboratories are established in compliant with requirements of CNAS-CL01:2018（ISO/IEC 17025:2017. We stick to the quality management principle of “science and objectivity, accuracy and efficiency, service first, continuous improvement”. The laboratory is independent from other departments to ensure the objectivity and fairness of quality inspection. We strictly control and standardize the working flow processes. The laboratory has obtained the UL Witness Test Data Program Certificate and TUV Witness Testing Certificate.