Makina opangira laser, omwe amakhala ndi etching yolondola kwambiri, ndiye makina omwe amagwiritsidwa ntchito kwambiri m'makampani opanga PCB. Koma pali chinthu chimodzi chomwe makampaniwa sangaphonye - S&Teyu portable chiller unit CW-3000.
PCB imatanthawuza bolodi losindikizidwa ndipo ndi gawo lofunikira pamagetsi ambiri. Mukayang'anitsitsa, pali mawu ang'onoang'ono ambiri pa PCB. Kuti mutulutse mawu ang'onoang'ono pamatabwa ang'onoang'ono ngati amenewa, pamafunika luso lolemba bwino lomwe. Chifukwa chake, makina a laser etching, omwe amakhala ndi etching yolondola kwambiri, ndiye makina omwe amagwiritsidwa ntchito kwambiri m'makampani opanga PCB. Koma pali chinthu chimodzi chomwe makampaniwa sangaphonye - S&Teyu portable chiller unit CW-3000.