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...
Verenga zvimwe