the aluminum-plastic compound tube's inner and outer layers are both of PEX, clean, non-pollutant ,smooth.

the aluminum-plastic compound tube's inner and outer layers are both of PEX, clean, non-pollutant,smooth. thermo-melt layer and inner PEX layer are copressed and bonded into one together  at a step.the tube is suitable for high pressure and hot water.

pex gas pipe