IP protection class, IP class, distribution box IP67 ...

On December 17, 2021, Hengfengshuai Electric successfully delivered 235 sets of 30/0.4kV fully sealed oil-immersed transformers to Tanzania National Grid. ...

RAL是德国的一种色卡品牌,这种色卡在国际上广泛通用,又称RAL国际色卡,中文译为:劳尔色卡，今天恒丰友电气技术工程师Evan总结了适用于电气行业的RAL油漆色卡，以供大家 ...