He pointed to the smokestack overlooking the rutted dirt path winding past corn and red chili peppers hanging to dry. "We didn't have any awareness of what lead could do."

The formulation design, processing characteristic and material choice of winding without filling in epoxy resin cast dry-type transformer are introduced. The warnings in cast process are presented.

Women harvest coca in clearings along the winding dirt road, and children dry the leaves in the sun.