在法国铸造的广泛。
By comparing main properties of pipe with FWRPM, FRP pipe, steel pipe, Cast iron pipe and reinforce concrete make know technical economic superiority of FWRPM pipe and its broad developing prospects.
通过与玻璃钢管、钢管、铸铁管、混凝土管主要性能的比较，进一步阐明了该管道的经济技术优势和广阔的发展前景。
By comparing main properties of pipe with FWRPM, FRP pipe, steel pipe, Cast iron pipe and reinforce concrete make know technical economic superiority of FWRPM pipe and its broad developing prospects.
通过与玻璃钢管、钢管、铸铁管、混凝土管主要性能的比较，进一步阐明了该管道的经济技术优势和广阔的发展前景。
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