Zopangira za silicon core chubu gawo lapansi ndi polyethylene yolimba kwambiri, wosanjikiza wamkati umagwiritsa ntchito mafuta otsika kwambiri a silika gelisi olimba. Ndi kukana dzimbiri, khoma losalala lamkati, kutumizira chingwe chosavuta cha gasi, komanso mtengo wotsika womanga. Malingana ndi zosowa, kukula kwake ndi mitundu yosiyanasiyana ya machubu ang'onoang'ono imayikidwa ndi casing kunja. Zogulitsazo zimagwiritsidwa ntchito pamakina olumikizirana ma chingwe opangira ma freeway, njanji ndi zina zotero.