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1·A rotary electric connector plug, gang socket and cordless electric heater is dislosed.

本发明涉及旋转电连接头、电连接座及无绳电热器具。

2·Said electric gang socket has annular electrodes and bottom contacts on its internal side wall and bottom of its recess.

旋转电连接头在柱状接头的头端面和外表面分别设有环状电极片和侧弹触片。