PANNEXT ndi fakitale yodalirikakupanga zopangira mapaipi okhala ndi satifiketi ya UL & FM
Chigongono chopangidwa ndi chitsulo chosungunuka cha 90 ° chimagwiritsidwa ntchito kulumikiza mapaipi awiri polumikizana ndi ulusi, kotero kuti payipi itembenuke madigiri 90 posintha momwe madzi amayendera.
Tee yofanana yachitsulo yosungunuka ili ndi mawonekedwe a T kuti atchule dzina lake.Nthambi yotulutsira nthambiyo ndi yofanana ndi chotulukira chachikulu, ndipo imagwiritsidwa ntchito popanga payipi yanthambi kupita ku 90 degree direction.