输配水管网采用了球墨铸铁管和钢管。
Graphite cast iron pipes and steel pipes are used for the water supply and distribution pipe network.
本文介绍了RPM管的主要性能，并与塑料管、钢管、球墨铸铁管及钢筋混凝土管的相应性能作了分析和比较。
The main properties of RPM pipe are introduced and compared with the properties of the plastic pipe, steel pipe, ductile iron pipe and reinforced concrete pipe.
传统的镀锌钢管和普通排水铸铁管由于易锈蚀、自重大、运输施工不便等原因已逐渐被取代。
The traditional galvanized steel tube and ordinary drainage iron pipe due to easy to rust, since the major, transportation construction inconvenience of reason has gradually be replaced.
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.
陶瓷内衬复合钢管与钢管、磨合金铸管、铁管和铸石管比较，相对重量轻，便于运输和安装。
The ceramic-lined steel composite pipes are lighter than alloy pipes, cast iron pipes, and cast stone pipes, which reduces the expense of transportation and makes the pipes easier to install.
系列对焊机广泛应用于钢、铁、铜、铝杆等材料的对接，也适用于扁钢、扁铝和钢管、铁管的对接。
The butt welder is widely used in butt joint of such materials as steel, iron, copper and aluminum rod. It is also used in the butt joint of flat bar, flat aluminum, steel tube and steel tube.
系列对焊机广泛应用于钢、铁、铜、铝杆等材料的对接，也适用于扁钢、扁铝和钢管、铁管的对接。
The butt welder is widely used in butt joint of such materials as steel, iron, copper and aluminum rod. It is also used in the butt joint of flat bar, flat aluminum, steel tube and steel tube.
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