PCB hadanna Copper Clad board one ,fecl3 ,marker pen(CD wala liyanna puluwaan wediye)
ona circuit 1ke wire frames print out 1ka glass papers 1 aragena 1k Copper Clad board 1k uda tiyala hodata gelawena nethiwena hai karaganna (Copper tiyana side 1ke) passe UV
(Ultraviolet) welin expose...