Galvanized iron waya jẹ diẹ wọpọ ninu aye wa, o ti wa ni o gbajumo ni lilo ninu ikole, odi, kio net, ọja apoti ati awọn miiran oko, ṣugbọn lẹhin igba pipẹ ti lilo, ma a yoo ri galvanized iron waya blackened, wipe iru ipo. bawo ni a ṣe le yago fun?Galvanized iron waya blackeni...
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