DM mainly produce alloy powder cores and alloy special shape cores.

ZHEJIANG NBTM KEDA MAGNETOELECTRICITY CO.,LTD (KDM), founded in 2000, is a wholly owned subsidiary of NBTM group, which belongs to NBTM New Material Group Co., Ltd. (Stock Code: 600114), a listed company. KDM is one of the world's leading manufacturers covering a full range of magnetic powder cores, from iron powder cores to high-performance iron-nickel magnetic powder cores. The company has advanced automatic production line of soft magnetic powder cores and development center. KDM has passed ISO9001:2015, ISO14001:2015 and IATF16949:2016 .KDM products are widely used in high-efficiency switching power supply, UPS power supply, photovoltaic inverter, new energy vehicle power supply, charging pile, high-end household appliances, power quality, 5g communication and other fields.