IntroductionZZDQ is one of the largest industrial plug and socket manufacturers in China.ZZDQ is a brick-and-mortar comprehensive manufacturer which integrates research & development, the fabrication factory, and selling of the industrial plugs and sockets.We are known for the largest factory scale, the full product ranges and the highest quality standard. ProductsZZDQ manufactures plugs, sockets, and connectors for industrial purpose.The ampere ranges are widely available from 16A to 420A. 16A, 32A, 63A, 125A are the most popular series.The voltage ranges are optional below 1000V.The products fully and strictly comply with IEC / CEE international standard.The company and all the products are certified by CE, CCC, etc.