The ST Simplex adapter can be paired with the ST connector. It is made of metal and contains an alignment sleeve made of zirconia ceramic material. Basic Construction Specifications. table Technology (Shenzhen) Co., Ltd is a high-tech company which specializes in fiber optic cable assemblies and fiber optic network devices manufacturing, known as the fiber optic cable manufacturer for the excellent products quality, competitive prices, fast delivery and good service. It is to put the fiber of two surface precision docking, so that the optical output of ligh.