... GB 4.Standard:IEC,GB,NEMA,JIS ISO Centification Class 180 Polyesterimide enamelled Copper Welding Wire1.Specifications of copper ... wireDiameter:0.025-2.0mmStandard: IEC, NEMA,GBThermal Class: 130/155/180/220 centigradeCertification:SGS,UL Approved,iso9001 ... High cut through3.Main Applications of copper welding wirea)Sealed motor working under high temperatureb)Transformer,modern instrumentc)Generators, ...