what is the different between np2& np3 rcc hume pipe



what is the different between np2& np3 rcc hume pipe..

Answer / prashanth

Their will difference in the steel,in the np2 steel cage
will in the single layer and in the np3 steel cage will in
the double layer,the dia of the steel will be more from np2
to np3.The thickness will also be more than from np2 to np3.

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