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About:
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pvc inside coupling - RIFENG Multilayer Plumbing Pipe is the next generation of pipes that unite the advantages of plastic and metal pipes and offers a high degree of flexibility and toughness, coupled with high pressure and temperature resistance. RIFENG Multilayer Plumbing System consists of an inner and outer layer which include a layer of overlap welded (or butt welded) aluminum in the middle, these three special bonding layers work together to build a permanent structure for a better, longer-lasting pipe. At the same time, the aluminum layer can maintain the shape of the pipe and prevent oxygen penetration from the atmosphere.
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