云浮無縫鋼管規格表,鋼管
鋼管510*22 520*30 530*28 540*55 580*50 630*40 510*25520*40530*30540*60580*55630*50 云浮無縫鋼管510*28520*35530*35540*65580*65630*55 510*30520*45530*40550*20610*20630*60 510*35520*50530*45550*25610*25630*80 510*38520*55530*50550*30610*30700*20 云浮無縫鋼管510*40520*60530*55550*35610*35700*25 510*45520*65530*60550*40610*45700*30鋼管