تولیدکنندگان، عرضه‌کنندگان، توزیع‌کنندگان

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".

Finisar is a global technology leader in optical communications. Our world-class products enable high-speed voice, video and data communications for networking, storage, wireless, and cable TV applications. For more than 25 years, we have created critical breakthroughs in optics technology and supplied system manufacturers with the production volumes needed to meet the exploding demand for network bandwidth. Finisar's industry-leading products include optical transceivers, optical engines, active optical cables, optical components, optical instrumentation, ROADM & wavelength management, optical amplifiers, and RF-over-Fiber.

SUNTECH INTL HK CO., LIMITED( Suntech Co., Ltd.) was founded in 2003 from China, a leading global IT networking supplier of new and pre-owned network equipment and accessories.With an experienced and professional team, we have exported our new and used network items to many countries and regions all over the world. Our products enjoy a good reputation among our customers. We welcome customers, business associations and friends from all parts of the world to contact us and seek cooperation for mutual benefits.
Our main products:
CISCO, Finisar, Juniper, HUAWEI, IBM's SFP, GBIC, XFP Transceiver MODULES, Network Switches, NetScreen, Network cards, X2-10GB-SR, GLC-T, SFP-10G-SR, XFP-10GER-192IR+, ONS-CXP-100G-SR10, CVR-QSFP-SFP10G=, HWIC-2FE, HWIC-2CE1T1-PRI, C2960X-STACK, WS-C2960S-LPD-L, WS-C3750X-48T-L, WS-C2960X-48LPS-L etc
Our Features
Original guarantee
We are supplying plenty of products that ordinary distributors can no longer supply, complete with the original manufacturer guarantees. All of our used networking equipments and parts are tested, cleaned and good condition.
Competitive Price
We are committed to offer client great product the best price in Chinese market. With the advantage of Up to 70%-90% price off compared with original price, we manage to maximize clients’ profits by reducing the product cost.
Perfect After-sale service
We provide guarantee safe packaging, speedy service, and delivery. We go out of our way to provide timely answers and technical assistance to address clients’ specific needs. Our after-sale Department will keep up to date on new developments with regard to every order, and we offer free maintenance for return equipments.
Extended warranty
We offer 1 year warranty for all new items, and replacement or return is available within 30 days. As for used items we include a 180-day replacement or refund warranty. From our long-term warranty policy, we give clients unsurpassed confidence when purchasing our equipment.
Professional technical support
Our Company has built a professional technology team of 10 staffs with above 10 years working experience on IT network. Every used part we deliver to our customer has been fully reconditioned and tested at our Corporate Technical Center to meet or exceed original factory performance specifications.
Payment terms
100% prepay by T/T or Paypal are both OK.

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