CJ20J、NSFC1（xxxxx1）、NSFC2（B series）、NSFC3（3TE.3TB）series of permanent magnetism AC contactors produced by our company not only take the lead of saving energy and environmental protection at home but also are in the lead internationally. Such key breakthroughs as no temperature rise, no noise and long lifetime convince the experts and personnel in the field. The patent technology, enterprise standards and product models have respectively passed the certification of the State Bureau of Intellectual Property, the State Bureau of Technical Supervision, China Certification Committee of Electric Products, ISO9000 International Quality System Certification, CCC Certification and the certification of the National Low Voltage Apparatus Standardization Committee. Besides, the company produces CJ20 series of AC contactors, DZ20 series of circuit breaker with plastic shell, DLS-II heavy current generator and SSJB-II relaying protection testers. The performance and quality of our products are very excellent in the field