ppr-al-ppr pipe and fittings 1.health,cyclable,non-toxic 2. ... .color:white,green,gray ppr-al-ppr pipe and fittings1.health,cyclable,non-toxic2.connection:hot melt3 ... . Smooth inner wall surface, reducing the pressure loss and increasing the flowspeed7. Low noise, reduced by 40% ... steel pipes8. Variety of colors and excellent designs, suitable for in-wall and out-wallinstallations9. Excellent ability in ...