Spiral welded pombi (SSAW pombi) imhando yespiral seam simbi pombi yakagadzirwa ne strip simbi coil seyakagadzirwa, iyo inosungirirwa ne otomatiki mbiri-waya-paviri-mativi akanyudzwa arc welding process uye extruded pakamuri tembiricha.Injiniya yekupa mvura, indasitiri yepetrochemical, indasitiri yemakemikari, e...
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