Qingdao Guangying Company(APT for short) is a high-tech joint venture specialized in developing, manufacuring and marketing of passive optical components and photoelectric transmission equipments and ...

Qingdao applied photonic technologies co.ltd is a high-tech joint venture specialized in development, manufacture and marketing of passive optical components and photoelectric transmission equipments ...

Liuquan Road

Zibo Highcom Electricity Technology Co., Ltd. is a manufacturer of telecom test instruments with well-equipped testing equipment and strong technical force. With a wide range, good quality, reasonable...