Place of Origin:Tianjin, ChinaBrand Name:HYQModel Number:Drilling ScrewStandard:DINProduct name:Plastic chip board screws yellow with great priceMaterial:C1022,C1022A
The electrical maintenance training device is rich in content, extensible, the circuit can be freely combined, training students' hands-on ability, and getting comprehensive training from design circuit, electrical appliance selection, planning layout, el