Yueqing Zhengda Soft Magnetic Alloy Co.,Ltd is a high-tech company that mainly produces ultra-crystallite (nanometer cryst-allite) material,ultra-crystallite magnetic core,current transformer,Zero sequence current transformer,toroidal transformer.

• 乐清市正大软磁合金有限公司，是一家专业生产超微晶（纳米晶）带材，超微晶磁芯，电流互感器，零序互感器，环型电感的高科技、软磁公司。