1. We have 5 Years Export Experiences 2. 100% full load burn-in test 3. Approved CE,ISO 9001 certificates 4. 2 years warranty MWB1 Series Harmonic Filter ApplianceAlong with the rapid development of power electronic technology, especially in the power supply network nonlinear load system, such as frequency converslon, electric welding equipment, large rectifier voltage generator, magnetic and ...