Factory also has more than 2000 standard bobbin moulds, for example,EE.EI,UU,EF,ET,PQ,ETD,EFD,ER,RM,POT and SMD series, Recently, our company has developed a new product-network transformer bobbin.
Proper is specializing in the design and manufacture of bobbins, our components are used by over 2000 OEM manufacturers serving more than 300 industries worldwide. For example,North America, Europe ,Japanese and Middle East,India and so on.