... . certification by ISO9001 HF V HF vertical extruding pipe-making machine is the ideal equipment to manufacture cement pipe. Reasonbale ... tubular products made by this machine has the following advantages :average wall thickness ,smooth inner and outer wall ,good impermeability ,high ... φ200, φ300, φ400, φ500, Ø600, 700, φ800, φ1000 (2)Wall Thickness: 200 30mm, φ300 30mm, φ400 40mm, φ500 50mm, 600 ...