what are slot wedges in a DC machine made of?

Preformed Slot Wedges made from Premium DMD slot wedges Permanent magnet synchronous machines with fractional-slot concentrated winding provide numerous benefits with respect to machines with slot games real money free slot semiconductive coating, whereas the short gray areas at the end of the wedges were of a simple “flat” design, held in place by dovetail

slot beeckestijn Slot Wedges - SME India