Spiral welded pipe (SSAW) kubvisa ngura uye anticorrosion process sumo: Kubvisa ngura chikamu chakakosha chepombi inodzivirira kupisa. Parizvino, kune nzira dzakawanda dzekubvisa ngura, dzakadai semanyorero kubvisa ngura, kuputika kwejecha uye pickling kubvisa marara, nezvimwewo Pakati pavo, bhuku re ...
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