UP electrical have pay a highly attention of the quality, we test the random samples each shipment

Fuse rail was producing whole of this month, temperature rising is the most important.

UP electrical have pay a highly attention of the quality, we test the random samples each shipment.

All metal parts are copper, with tin or silver plated, the temperature rising less 60K. Except the temperature rising, we insist to test all screws and accessories by 48hours salty-spray.