About Us 
Proper  Electronics Co.,Ltd was established in 2000,At the beginning of establishment,  Proper is Pinshine subordinates for product processing, the meanwhile, Proper  began to do research and development on production of transformer bobbin and  SMD type bobbin.In our factory, there are horizontal injection machines,  vertical injection machines, pin insert machines. 
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.
Our own factory can provide a one-stop service, we has  advantages for customer as every project is completely controlled in-house.  Also we has an specialized team who are good at English and can communicate  with customers smoothly, what’s more, we have a specialized mould design team who can design the mold according  to customer’s requirements, our service  team can provide a perfect service for customers.          
Proper  principle is customer first, and quality always, we measure performance by  customer satisfactions in quality, delivery, cost, service and technology at  all times. 
Welcome to join us!