Isakhiwo sesakhiwo sensimbi senziwe ngensimbi yokushisela ingxenye ye-H njengekholomu nogongolo, ezinye zazo zine-crane beam, zenziwe ngogongolo lwensimbi lwe-H. ishidi lensimbi yensimbi noma iphaneli yesangweji.Isicabha singumnyango we-shutter kagesi noma umnyango ovulekile oyisicaba.Iwindi liyifasitela le-pvc noma i-aluminium.Ngokusetshenziswa kakhulu kwesakhiwo sensimbi, izinzuzo zaso ziya ngokuya ziphawuleka uma ziqhathaniswa nesakhiwo sendabuko.