Where the owner name is not linked, that owner no longer owns the brand
Technical Examples
A power supply with optional types of plugs, composed by one universal body and replaceable plug, is disclosed. The universal body includes a plurality of blocks, a circular recess, an elastic switch key, and two conductive plates; whereas the plugs could be different specifications of plug with opposite blocks and two conductive plates, the block holes and blocks include a set of error-proof block hole and error-proof block which posses a block slot to hold the fan-shaped block.