Zenera lopendekeka, lochokera ku Europe ndipo limatchuka chifukwa chomanga nyumba zongozungulira komanso zero zero, ndi mtundu wazenera wokhala ndi mawonekedwe apadera okhala zenera lopindika mkati komanso zenera lotsegulira lapamwamba.the hinge yochenjera ndi makina ogwiritsira ntchito mwanzeru amapangidwa mwapadera kuti alole kusintha kosasinthika pakati pa ma modes kudzera momwe chogwiriracho chimayendera.kutengera malo a chogwiriracho, chimatha kugwira ntchito ngati zenera lokhazikika (chogwirizira mu malo a 6 koloko), zenera lamkati lamkati. (gwirani mu malo a 9 koloko) kapena zenera la hopper (gwirani mu malo a 12 koloko) .mawonekedwe azenerawa amaphatikiza chitetezo, kulimba kwa mpweya, zofunikira za egress komanso kuyeretsa kosavuta kwa swing casement ndi nyengo yonse. mpweya wabwino wa hopper.

Seinda ali ndi mwayi wopereka mtengo wabwino kwambiri pamawonekedwe amtundu wa windows.we tikufuna kupanga zokhazikika, zopatsa mphamvu komanso zokongola kuti zifikire ku bajeti zonse. ndi gulu lamalonda laluso lomwe limayankha mwachangu ku inquiries.we timasungira katundu wathu ndi chitsimikizo cha zaka 10 kuti mukhale ndi mtendere wamumtima.