Ipayipi le-Polyethylene of Raised Temperature (PE-RT) iyipayipi lepulasitiki elishintshashintshayo elisezingeni eliphezulu elifanele ukushisisa nokupholisa phansi, amapayipi amanzi, ukuncibilika kweqhwa, kanye nezinhlelo zamapayipi omthombo we-geothermal womthombo waphansi, osekuthandwa kakhulu emhlabeni wanamuhla.T...
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