... Cost - only take 12USD/sq.m(include 10-15m wire and electron control ); Install Free - it can be ... engrave slot on the board directly ,put the KPT wire in the slot ,at the connection of elevation ... pattern ,the wire can cross the board, form the colored simple ... Glass,sheet,board , metal, plastic Use glue (502, epoxy glue, silica gel ,hot-sol) stick it’s surface ...