Sine Wave Test Technology Co.,Ltd,developed & manufacture OTDR and modules, fiber splicing machine, fiber optic test systems,Precise Cable/Adapter Assemblies and other products, with the world-leading performance, the worldwide manufacturer of optical fiber communication and network operators to provide testing services. Our team has a wealth of experience, and full of passion. We fully understand the customer's actual needs, the design of each product are subject to the customer's favorite.