功能模块  制造商、经销商、供应商

GRT(Beijing Guangruntong Technology Development Co., Ltd.) is headquartered in Beijing Zhongguancun Hi-Tech Park and began in April 2008. GRT has gathered a group of senior R&D personnel with an average age of more than 15 years. Under the background of the rapid development of the optical fiber industry and the optical fiber to households, GRT has always adhered to the strategic principles of quality and innovation, and has gradually grown into a high-tech fiber optic company that is currently well-known in China, which integrates R&D, production and marketing, and has its own intellectual property and its own brand.
The main products of GRT are Optical Fiber Network Cards, Optical Fiber Modules, WDM devices, Optical Converter, Optical Fiber Patch Cord, and Optical Splitter. All kinds of products have passed international certification such as FCC, CE, and ROHS, as well as national industry certification, and have won a number of scientific and technological progress awards and excellent product awards. On the road ahead, GRT is committed to building China's own national enterprises, achieving the goals of "Optics Links The World, Connects Us Togetcher".

LQ机电一体化系统有限公司是一个位于贝思格海姆的中小企业，作为一个成功的系统和产品供货商，它针对控制技术和装备技术提供机电一
体化的成套解决方案。无论是模块化控制柜还是能源管理系统，对于机电一体化专家来说减少问题的复杂性都是第一位的。以标准化接口的模块化原则为基础，LQ公司把单个的构件组合在一起，形成紧凑的功能部件或者完整的子系统，从而为机械与设备制造业提供成套的机电一体化装备。公司在3 大洲共有280 名职工。
除了德国总部之外，LQ集团在瑞士、美国和中国都设有分公司。

WareX Technologies - an innovative and competitive supplier of networking connectivity and infrastructure solutions for LAN, MAN, FTTX.. applications.
Backed by strong engineering and manufacturing backgrounds, WareX was established to deliver the quality and reliability to the marketplace and customers with cost effective solutions including:
• Active Pluggable Transceivers
• Active/Passive Copper Cables and Active Optical Cables
• Fiber Media Converters
• xWDM Mux/Demux/OADMs
• MPO/MTP Cabling
• Networking Accessories