平焊法兰连接法也是与铸铁管及钢管之间简单的连接方法。
The connection method between the simple flange connection method and cast iron pipe and steel pipe.
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.
所有的加热原件均用高温镁填充，发热管为高质量的不锈钢管，铜管，以及铁管等。
All its electrical heating elements, with high-temperature magnesium WATT as filler, which are made of good quality stainless steel Tubes, cooper Tubes, and iron Tubes, ect.
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