... easy to operate,etc. Concrete pipes produced by this machine have characteristics as follows: inside and outside walls are ... engineering, quality is very reliable. Cement pipe machine Technical Parameters: Host machine power7.5KWRotor frequency of roller40-50rpmMolding time5 minHost ... )φ200*1000, φ300*1000, φ400*1000, φ500*1000, φ600*1000, φ800*1000, φ1000*1000Raw materialCement, sand, broken stones ...