1.Certificate:CCC,CTQC,ISO9001,ISO14001,OHSAS18001 2.Apply for IEC,ANSI 3.oil immersed power transformer 4.3 year warran The three-phase oil-immersed distributing transformer applies new type insulating structure and makes short-circuit resistance strong. The iron core is made up of cold-rolled silicon-steel plate of high-quality. high voltage winding group is made up of high-quality oxygen-free ...