1 dry type electronic transformer 2.provide new bobbin 3.high quality , resonable price 4 3 or single phase 5 CE /ISO Dry Type Transformers Description 1.Grade 3 non-coherent envelope H- Dry Type Transformer 2with safe, reliable, energy saving, fire, explosion, do not produce harmful gases, do not pollute the environment, and easy maintenance. 3 Its advanced design, reasonable structure, ...