Aaro jẹ ilana kan pato ti itọju ooru ti o tan awọn ohun-ini irin. Lakoko ti ọpọlọpọ awọn oriṣi oriṣiriṣi itọju ooru, iṣagbegbe jẹ olokiki nitori pe o mu ki dectality pọ ati dinku lile.
Alpiloy 825 Alloy jẹ ohun elo nickel-iron-crumium chrobium ti o darapọ molydẹm, Ejò ati Titanium fun ọpọlọpọ awọn agbegbe ohun elo aigbagbe. Indoloy 825 jẹ sooro to lagbara pupọ. O ni akoonu nickel giga, o to lati koju awọn kikoro chloridion chloridion kikan, ati iṣeto alagbero iduroṣinṣin pupọ.