Ko te HDPE, e kiia ana ko (High Density Polyethylene) ma te whakamahi i te 3,000,000 molecular weight ultra high molecular weight polyethylene pipe, me te roa o te mau kakahu, e kore e uru ki te rino, me te whitiki me te iti o te waku, ka nui te roa o te oranga o te whitiki.He mangere HDPE kawe me te tiaki hiri...
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