Welded, irin Falopiani pẹlu gbona fibọ tabi electrogalvanizing bo.Galvanizing le ṣe alekun resistance ipata ti paipu irin ati gigun igbesi aye iṣẹ rẹ.Pii galvanized USES jẹ jakejado pupọ, ni afikun si ito titẹ kekere gbogbogbo gẹgẹbi omi, gaasi, paipu laini epo, ti a tun lo bi ile-iṣẹ epo, ni pataki aaye epo aaye epo epo daradara pipe, pipe epo, ohun elo coking kemikali ti igbona epo, awọn condensing, paṣipaarọ ti edu distillation w epo kula fun tube, ati trestle opoplopo, iwakusa eefin atilẹyin tube fireemu, ati be be lo.