1、焊接结构：简单的把钣金件经过裁剪、折弯、开孔然后焊接起来。
1. Welding structure: simply cutting, bending, opening and welding the sheet metal parts.
2、拼装结构：把钣金件分开加工，每个部件加工好以后在组装，用螺丝和三通加固锁死，外观漂亮，操作简单，可以节约大量的运输成本。
2. Assembly structure: Separate sheet metal processing, after each part is processed in the assembly, with screws and three-way reinforcement locking, beautiful appearance, simple operation, can save a lot of transportation costs.
配电箱和配电柜、配电盘、配电屏、电器柜等，是集中安装开关、仪表等设备的成套装置。
Distribution boxes and cabinets, distribution panels, distribution panels, electrical cabinets, etc., are a complete set of devices for centralized installation of switches, meters and other equipment.