We have passed the accreditation and obtained ISO 9001 International Quality System Certificate. Meanwhile,we have also gained the "Production License Certificate of Electric Power Fittings" issued by State Quality &Technology Suppervision Bureau,China and the "Measurement Conformity Certificate " issued by Nanjing Quality &Technology Supervision Bureau .In this case,we have established a complete set of effective QA systems and QC procedures to ensure our products of high quality and high precision.