Kev faib tawm thiab kev siv cov kav dej welded Welded steel yeeb nkab, abbreviated li welded steel yeeb nkab, yog tsim los ntawm steel phaj los yog cov khoom uas tau dov thiab tsim rau hauv welded steel kav.Cov txheej txheem ntau lawm ntawm welded steel kav yog intuitive, nrog ntau lawm efficiency, ntau yam va...
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