1. Mata o PCB: OSP, HASL, Arata-kore HASL, Rūmaki Tin, ENIG, Rumaki Hiriwa, Whakakikorua koura pakeke, Whakakikoruatia koura mo te poari katoa, maihao koura, ENEPIG... OSP: utu iti, pai solderability, tikanga rokiroki pakeke, he wa poto, he hangarau taiao, he pai te whakapiri, he maeneene… HASL: ko te tikanga he mu...
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