What Are The Requirements for Flange Connection on...
When piping use flange connection, should meet some requirements.
Aug 17, 2017
Pipes Should Use Thread Flange Connection Requirem...
When use the thread flange connection, hot-dip galvanized steel pipe fittings should use "forged cast iron pipe fittings" GB3287 ~ 3289.
Aug 15, 2017
Why Is Ductile Iron Pipe Stronger Than Ordinary Ca...
The ductile iron pipe strength is much higher than the strength of ordinary cast iron.
Aug 09, 2017
How to Distinguish between Heavy Covers And Light ...
Light duty manhole covers are used in green belts and somewhere that motor vehicles can not drive and park.
Aug 07, 2017
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