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顺序 分类 直径 标准 级别
1 预应力钢绞丝 4mm~12mm and so on ASTM A421,ASTM A 881/ A881 M 1470MPa,1570MPa,1670MPa,1770Mpa and 1869MPa
2 预应力钢绞线 9.3mm~15.7mm and so on ASTM A416, ASTM A881/A 881M,BS5896,JISG3536, ISO6934 1470Mpa, 1570MPa, 1670MPa,1770MPa
3 预应力钢棒 9.2mm~40mm ASTM A722,BS4486 PSB785,PSB830,PSB930

 

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