ICS 77.140.45 H 40 National standard of the People's Repu blic of China GB/T 700-2006 Replace GB/T 700-1988 碳素结构钢 Carbon structural steels (ISO 630:1995, Structural steels – Plates, wide flats, bars, sections and profiles, NEQ) Issue date: Nov 1, 2006 Implementation date: Feb 1, 200...

时间:2025-01-30 11:36栏目:行业资料