We would like to cooperate with you in your market. If you are interested in our products, we will send you our full catalogues.   Please feel free to contact me ...

Our company is semiconductor test PCB the professional factory, We made the kinds the fine pitch boards and Probe card and Lod boards other multiple... Also we have been exporting to many countrie...

Thank you very much for visiting our website.Sejong Materials Co., Ltd. is one of the leaders in the BLU and lighting substrates for metal base LED. Sejong Materials Co., Ltd. is a company specialize...