... welder in which AC voltage is under 200V and pulsant peak value is under 400V.Type:1. Cabtyre covered ... extruding.4,Cores Twisting.5,Spooling. Main Quality Inspection Equipment:Spark Tester,Heating aging Chamber,High resistance machine,Oxygen ... inspection instruments,Fireproff testing device,High-Power voltage withstand tester,No-rotor vulkameter,Pull tester ,Analytical balance,Direct Current bridge ...