In order to change the situation a plan to develop square H. F. welded pipe used in container has been put forward.
为改变这一现状，国家提出国内焊管行业开发集装箱用方矩形高频焊接钢管的计划。
The bored cast in place concrete piles embedded in rock were used in the main structure. The post grouting prestressed pipe piles adopted in the design were the f...
航站楼的主体结构采用嵌岩冲孔桩，设计中采用的后压浆预应力管桩是首次在岩溶地区应用。
The bored cast in place concrete piles embedded in rock were used in the main structure. The post grouting prestressed pipe piles adopted in the design were the f...
航站楼的主体结构采用嵌岩冲孔桩，设计中采用的后压浆预应力管桩是首次在岩溶地区应用。
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