shyam khandelwal Member Member since Nov 4, 2012 Last active Jun 22, 2013 Total activities 0 Activity feed Recent contributions #Threads 13 years ago 338c1768-8daa-47e6-8aad-2654c7acffcc it depends upon excavation and the lining............ #Threads 13 years ago Flow in open channels what is the most economical section of channels
