For electric plugs, why do European-style two-pronged circular ones have at least two different standard diameters, making them incompatible? - Quora
![VDE Approval Euro 2 Round Pin Plug AC Power Cord Type - China AC Power Cord Type, Euro Plug | Made-in-China.com VDE Approval Euro 2 Round Pin Plug AC Power Cord Type - China AC Power Cord Type, Euro Plug | Made-in-China.com](https://image.made-in-china.com/202f0j00dOfacjWCfGko/VDE-Approval-Euro-2-Round-Pin-Plug-AC-Power-Cord-Type.jpg)
VDE Approval Euro 2 Round Pin Plug AC Power Cord Type - China AC Power Cord Type, Euro Plug | Made-in-China.com
![European power cord, Europe 2 pin power cord, VDE two round plug, VDE round plug power cord_Power cord,power cords,plug,AC power cord,power cable European power cord, Europe 2 pin power cord, VDE two round plug, VDE round plug power cord_Power cord,power cords,plug,AC power cord,power cable](http://www.powercord9.com/upload/photo/53c042bb1908ec2b8d0284ba04574d90.jpg)
European power cord, Europe 2 pin power cord, VDE two round plug, VDE round plug power cord_Power cord,power cords,plug,AC power cord,power cable
![5pcs 16a 250v Ac De Eu Din Round 2 Pin Power Cord Connector Short Type Ce Electrical Plug,detachable European Plugs - Connectors - AliExpress 5pcs 16a 250v Ac De Eu Din Round 2 Pin Power Cord Connector Short Type Ce Electrical Plug,detachable European Plugs - Connectors - AliExpress](https://ae01.alicdn.com/kf/HTB1owMULXXXXXaJapXXq6xXFXXXJ/5pcs-16A-250V-AC-DE-EU-DIN-Round-2-Pin-Power-Cord-Connector-Short-Type-CE.jpg)
5pcs 16a 250v Ac De Eu Din Round 2 Pin Power Cord Connector Short Type Ce Electrical Plug,detachable European Plugs - Connectors - AliExpress
![2 Pack) Tekit Schuko France Germany EU ø4.8mm Pin DIY Rewireable Power Plug 250V 16A,Quality European Rewireable Two Round Plug CCE 7/7 Standard Plug(Coated Black) : Amazon.ca: Tools & Home Improvement 2 Pack) Tekit Schuko France Germany EU ø4.8mm Pin DIY Rewireable Power Plug 250V 16A,Quality European Rewireable Two Round Plug CCE 7/7 Standard Plug(Coated Black) : Amazon.ca: Tools & Home Improvement](https://m.media-amazon.com/images/I/511LeZwKwgL.jpg)
2 Pack) Tekit Schuko France Germany EU ø4.8mm Pin DIY Rewireable Power Plug 250V 16A,Quality European Rewireable Two Round Plug CCE 7/7 Standard Plug(Coated Black) : Amazon.ca: Tools & Home Improvement
![REGVOLT Power Plug Adapter USA to Europe Round Prong Travel Plug - Black (European - 2 Pack), Outlets & Accessories - Amazon Canada REGVOLT Power Plug Adapter USA to Europe Round Prong Travel Plug - Black (European - 2 Pack), Outlets & Accessories - Amazon Canada](https://m.media-amazon.com/images/I/41qmqIg6ATL._AC_UF894,1000_QL80_.jpg)
REGVOLT Power Plug Adapter USA to Europe Round Prong Travel Plug - Black (European - 2 Pack), Outlets & Accessories - Amazon Canada
![Ac 250v 16a,en,eu,din Round 2pin Power Cord Connector,2 Pin Electrical Plug,detachable Plug,ce - Electrical Sockets - AliExpress Ac 250v 16a,en,eu,din Round 2pin Power Cord Connector,2 Pin Electrical Plug,detachable Plug,ce - Electrical Sockets - AliExpress](https://ae01.alicdn.com/kf/HTB1XWlkgH_I8KJjy1Xaq6zsxpXa4/AC-250V-16A-EN-EU-DIN-Round-2Pin-Power-Cord-Connector-2-pin-Electrical-Plug-Detachable.jpg)