... largest FC-SC Fiber Jumper supplier in China, we offer the lowest prices in the market with the highest quality Fiber Optic Patch ... Ningbo, southeastern ChinaExpert in producing optical distribution frames, LAN cabling systems, outdoor equipment cabinet and cable (fiber) trays and so on. ... Annually produce 275,000 DDF, 250,000 ODF, 300,000 optical cable splice closures, 150 million loops of MDF, 150,000 ...