ASTM A312 Irin Alagbara Irin Pipe olupese Ṣayẹwo Irin Alagbara welded/ ERW Iwọn titẹ titẹ ati awọn iwọn Irin alagbara, irin Pipe ASTM A312 Irin Alagbara Irin Pipe SA 213 SS Welded tube Akoko ifiweranṣẹ: Oṣu kọkanla-22-2021