Build in 1996 as CHANGZHOU HUAMING ELECTRONIC EQUIPMENT FACTORY, regroup at 2011 as CHANGZHOU HUAMING ELECTRONIC EQUIPMENT CO.,LTD. More than 20 years experience for EMC field. Build more than 1000 sets RF shielding room and EMC chamber all around the world. Pass the supplier ceritificated by Ericsson, Cisco, HUAWEI, QUALCOMM, Broadcom and other famous company. As the original manufacturer, we have the full line fittings for EMC chamber, our factory manufactory RF shielding door, Beryllium copper finger, honeycomb vent, power filter, signal filter, MRI door, RF shielding cabinet, RF shielding windows, wavetube, waveguide and almost all fittings.Our company location is 260KM from SHANGHAI PUDONG Internation air port, welcome all customer to visit our factory. If you need any small size sample, we are willing to offer the free sample to you for testing.