The SML no-hub cast iron drainage mapaipi ndi zotengera zimakwaniritsa muyeso wa BSEN877, DIN19522, ISO6594.Zipangizozi ndi 100% zogwiritsidwanso ntchito komanso zogwiritsidwanso ntchito, zokhala ndi mawu otsika, umboni wamoto, umboni wotayikira komanso anti-corrosive.Amagwiritsidwa ntchito kwambiri pochotsa madzi m'nyumba, ngalande, zinyalala ndi potuluka.Komanso dongosolo la madzi a mvula limayikidwa kunja kwa nyumba ndi dongosolo lokwiriridwa pansi pa nthaka likhoza kuperekedwa.
The EN877pipes zokutira kunja ndi ofiira, epoxy ndi makulidwe osachepera 70um.Mkati mwake muli utomoni wachikasu wa epoxy wokhala ndi makulidwe a 120um.Kapena mkati ndi kunja ndi oposa 120μm ufa epoxy zokutira ndi mtundu wofiira.
Zopangirazo zimakhalanso zofiyira mkati ndi kunja, utomoni wamadzimadzi wa epoxy ndi wopitilira 70um, ndipo epoxy ya ufa ndi yokulirapo kuposa 120um.