If you are checking best, high-quality, discount, or rf connectors brands, please feel free to contact Xi'an Hoan Microwave Co.,Ltd, we are one of the best China coaxial cable, rf modulator, coax kabel, cable connectors manufacturers and suppliers. Series BNC RF.Coaxial connectors which have the bayonet structure coupling mating and developed according to MIL-C-39012/16-24,they can be interchangeable with the same-type connectors of abroad,engaged and disengaged rapidly, used to connect coaxial cables in radio equipment and instruments.They accord with the Q/MB409-87 specifications. http://www.hoaninc.com