... the electric power named apparatus socket.in order to suit to all situations, the designs of socket appearance are ... inclined socket,small flange socket,and so on.According to rated current,there are four styles:16A,32A, ... pole (2P+E),4pole(3P+E),5pole(3P+N+E)We have 50Hz,60Hz,150,200,300,400Hz ... more usual.The position earthing pole ranges from 1h to 12h,often 6h.Protection degree:splash-proof(IP44), ...