预应力混凝土管道用冷拉钢丝具有一般冷拉钢丝无法比拟的良好的综合性能。
Cold-drawn steel wire for PC pipelines have good comprehensive performances that common cold-drawn steel wire unable to compare.
预应力混凝土管道用冷拉钢丝具有一般冷拉钢丝无法比拟的良好的综合性能。
Cold-drawn steel wire for PC pipelines have good comprehensive performances that common cold-drawn steel wire unable to compare.
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