Ucingo lwe-TXHHW lumele "i-XLPE (i-polyethylene edityaniswe ngokunqamlezileyo) Ukumelana nobushushu obuPhezulu obungaManzi."Intambo ye-XHHW luphawu lwesixhobo esithile sokugquma, ukulinganisa ubushushu, kunye nemeko yokusetyenziswa (efanelekile kwiindawo ezimanzi) kwintambo yombane kunye nentambo.