低松弛镀锌PC钢绞线 low relaxation prestressed galvanized PC steel strand
低松弛预应力钢绞线 ow relaxation PC strand
并对设计中有关有粘结预应力筋与无粘结预应力筋，低松弛钢绞线与普通松弛钢绞线的选择应用作了讨论。
The selection of bonded prestressing tendon and unbonded prestressing tendon, low-relaxation strand and stress-relieved strand in the design are also discussed.
大跨度桥梁采用低松弛镀锌PC钢绞线具有施工简便、造价低等优点。
Its profits are convenient construction and low cost that the wide span bridge is built by the low relaxation prestressed galvanized PC steel strand.
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