GDVA-405 Automatic CT PT Analyzer ready to shipment At the end of March, we received an export order for one set GDVA-405 CT PT analyzer. With the efforts of the production department, we have shipped GDVA-405 to the customer's freight forwarder yesterday.GDVA-405 Automatic CT PT Analyzer is used to test CT PT (220V-500KV,>2.5VA,turns ratio>1:1). The