Ductile pipe of water supply quality is a worthy of discussion, how to judge by the quality of ductile iron pipes?
Now on the market of ductile pipe is multifarious, about the name than there are grains of sand type ductile pipes, water-cooling ductile pipe, K8 level ductile cast
pipe, K9 grade ductile pipes.
Concerning the quality of single on the surface to analysis of pipeline is sand type and water-cooling pipes, K8 grade proportion of cement and cast iron
pipe with K9 class pipes have differences, K9 class pipes is about one 5 of the pipe weight, the weight of the cement is only have the effect of the inner corrosion, judge ductile pipe quality is the most intuitive judgment way is to see the thickness proportion of cement and cast iron, cement, the thicker the thick wall pipe quality, the better, there are some manufacturers of pipe, the thick wall of tube head part looks cast iron thicker, but cast iron is thin, so the judgment of whether the pipe to be cut by the quality of the inside,
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, which is one of the most outstanding product produced from us.
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