Zomangira za Gongbing zodzibowola zimagwiritsa ntchito ukadaulo waku Germany, zili ndi kapangidwe koyenera, mphamvu yozikika yolimba komanso yosavuta kugwiritsa ntchito:
Zida zomwe zimagwiritsidwa ntchito zonse zimachokera ku makampani akuluakulu azitsulo zapakhomo ndipo amatha kukwaniritsa zofunikira zazitsulo zamphamvu kwambiri: mankhwala apamwamba kwambiri padziko lonse lapansi.
Makina ochapira a EPDM omwe amagwiritsidwa ntchito ali ndi kusindikiza bwino, kukana kutentha, kukana kwamankhwala,
Kukaniza kwamphamvu ndikokwera kwambiri kuposa washer wamba wa EPDM.
Hexagonal kubowola mchira wa waya makamaka ntchito kukonza matailosi mtundu zitsulo nyumba zitsulo, ndipo amagwiritsidwanso ntchito pokonza nyumba zosavuta mbale woonda, ndi kulumikiza zitsulo ndi zitsulo monga kuwala zitsulo keels, matabwa, ndi mbiri aluminiyamu.