ʻOi aku ka maikaʻi o ka hoʻomalu ʻana i nā huahana, ʻoi aku ka maikaʻi o ka hui ʻana o ka metala i hoʻoheheʻe ʻia a i ʻole ka oxide. Inā ʻoki ʻia kahi laʻana weld polishing, etching, a nānā ʻia ma lalo o ka microscope optical, ua like ke ʻano o ka wahi i hoʻopili ʻia me ka pahu, no ka mea, ke komo nei ka lihi o ke kaula ...
Heluhelu hou aku