As a professional contactors, AC contactors, modular contactors, auxiliary contactors, 3TD mechanical interlocking contacors, contact blocks, contact type relays, general relays, solid state relays, pcb relays, thermal relays, magnetic relays, air conditioning relays, time relays, counter relays, relay sockets, starters, magnetic starters, cam starters, delta reduced voltage starter manufacturers, exporters, supplier and factory in China, Hongda Electric Group Co., Ltd., was founded in 1983 and locates in LiuShi ---The Electriacal Capatal of China. Hongda is one of the leading manufactures specializing in developing and producing all kinds of high or low voltage al products, counter relays, relay sockets and accessories in China. As an enterprise certified by ISO9001 system strictly, we have also got many safety certificates, su-ch as CB, SEMKO, FIMKO, ESC, CCC, VED, UL, CE etc. As the professional manufacturer and exporter, we have inter- national marketing experience of ten years. Our products, counter relays, relay sockets reach all over the world.