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ʻO kahi ʻāpana hoʻokahi me ka ʻike zinc kiʻekiʻe a me ka hopena kālā, hoʻohana ʻia e ka papa hoʻokahi a i ʻole ka topcoat me ka zindn cold galvanizing
ʻO kahi ʻāpana anti-corrosion uhi hoʻokahi-nui i haku ʻia me ka fusion agent, zinc pauka, alumini-kālā paʻi, solvent, etc., me ka hopena metala keʻokeʻo kālā.