Qingdao Applied Photonic Technologies Co.,Ltd (APT for short) is a high-tech enterprise specialized in development, manufacture and marketing of passive optical components and photoelectric transmission equipments and CATV that in-phase with international advanced technology. Our company is locate in Qingdao，a professional IT product manufacturer with a long history. Our factory covers an area of 10,000 square meters with first class equipment and about 300 talented and diligent workers.