Vavu yagulugufe yamoto nthawi zambiri imakhala ndi kukula kwa DN50-300 komanso kupanikizika kocheperako kuposa PN16.Amagwiritsidwa ntchito kwambiri mu mankhwala a malasha, petrochemical, mphira, mapepala, mankhwala ndi mapaipi ena monga njira yosinthira ndi confluence kapena otaya kusintha kwa TV.