Karfe karfe bututu bukatar waje jiyya don ƙara karko: 1. The surface na anticorrosive karkace tube da aka tsabtace da kaushi da emulsions, wanda zai iya cire kwayoyin halitta a kan surface na karkace tube, amma ba zai iya cire tsatsa, oxide sikelin. waldi juyi, da dai sauransu, don haka tsaftacewa ...
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