U hubso inaad tidhaahdo saddex, waa inay noqotaa: PPR, PVC, PE 1. Tuubooyinka caagga ah ee sida caadiga ah loo isticmaalo waa: PPR (polypropylene), PVC (polyvinyl chloride), PB (polybutene), PE-RT (kuleylka u adkaysta polyetylen), PE (polyethylene) \HDPE (la xoojiyay cufnaanta sare ee polyetylen) ethylene), iwm. Labaad, cabbirka tuubada caaga ah...
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