ShenZhen ZhiYan technology Co., Limited was founded in June, 2005 which located in Shenzhen of China. ZhiYan is professional optic passive products manufacture and supplier, which was set up by several experienced engineers from China Telecom. TopZone Optical's  products range includes patchcord, optic cable, optic attenuator, optic adaptor, patch panels, quick connector, connector,transceiver, tool.
From 2005 to 2009, ZhiYan 's products range includes patchcord.  The  production capability of patchcord is 500,000pcs each year.
From 2009, ZhiYan moved to new industrial park for extend scale, the kinds of products also became much more, includes patchcord, optic cable, optic attenuator, optic adaptor, patch panels, quick connector, connector, transceiver, tool. The throughput of patchcord is 1,000,000pcs each year, the throughput of optic fiber is 3,000,000km each year, the throughput of optic adapter is 600,000pcs each year, the throughput of patch panel is 20,000pcs each year.
Since 2005, our optic fiber products were exported to the U.S, Germany, Austria, Spain, United kingdom, Canada. We believe this is the way of multi-benefits.

Service:
Instead of imposing One-size-fits-all solution for products and/or projects we adjust our expertise to meet customer’s requirements by providing tailor-made solutions and services.
We are offering a full range of OEM/ODM services and together with our R&D center we are developing rapidly suitable products for the ongoing changing optic fiber market meeting highest quality standards.

Competitive Service Advantages
The main benefits and advantages  of ShenZhen ZhiYan technology Co., Limited:
- Fiber Optics Competence
- Strict quality control and high quality awareness
- The best prices
- Fast response to quote request(24 Hours)
- Fast delivery
- Strong support of shipment
- Prompt RMA Handling

Standards
Each fiber optics product is manufactured with highest quality standards. The networking products are compliant with ISO/IEC 11801. EN50173 TIA/EIA 568B,568A ,UL. ETL certified and all the products are Rohs compliant.