... strength * Productivity: 30-100pcs/8h Concrete pipe production line Brief intruduction a) HF vertical extruding pipe-making machine is the ideal equipment ... :7.5kwMould diameter (inside mm): 200mm, 300mm, 400mm, 500mm, 600mm, 700mm, 800mm, 1000mmWall Thickness:30mm for dia 200mm,300mm, 40mm ... for dia 400mm, 50mm for dia 500mm, 60mm for dia 600mm , 70mm for dia 700 , 80mm for dia 800mm, 100mm ...