Are the European standard and the German standard common?

What the subject wants to ask is whether the plugs of European standard and German standard are common? Not universal. According to official website search of Guangzhou Wanpu Electric Appliance Co., Ltd., there are two kinds of plugs commonly used in European countries. One is a 16A round plug with grounding, which is used for high-power electrical appliances. The pin diameter is 4.8 mm, commonly known as German standard plug. The other is an ungrounded 2.5A/3A/ 10A diamond plug with a pin diameter of 4.0 mm, commonly known as the European standard plug. German standard plug with grounding, European standard plug without grounding.