In recent years, we have applied test certification from recognized certification authorities from home and abroad, such as National Quality Supervision and Testing Center for Cable and Wire, Quality Inspection and Test Center for Equipment of Electric Power (Wuhan) and so on. We have got the type test report and 220kV pre-identification test report from KEMA (We have passed the type test for 1kV, 10kV, 35kV, 110kV and 220kV grade). Also, we have got the ISO9001 Quality Management Certification, ISO14001 Environment Management Certification and OHSAS18001 Occupational Health and Safety Management Certification.