Nthawi zambirinyamulaMapangidwe ali ndi gatket yofewa yofinya pakati pamatumbo olimba kuti apange chisindikizo chaulere. Zipangizo zosiyanasiyana za matket ndi opaka, elastomers (ma poligus ofewa), ma polima ofewa ophimba zitsulo (mwachitsanzo, PTF wophimbidwa ndi chitsulo), ndi chitsulo chofewa kapena aluminiyamu). Mapangidwe aliwonse oyaka ali ndi vuto.

Mukamakonzekera chipinda chatsopano chatsopano, wopanga ayenera kuyerekeza onsenyamulaZojambula zimapezeka ndikusankha zomwe:

1.Imagwirizana ndi zomwe zikufunika
2.Ikufanana ndi kutentha kofunikira
3.Sakhudzidwa ndi zomwe zimayambitsa zida kapena zinthu
4.Machesi outtings ndi zigawo zomwe zimawonjezeredwa ku dongosolo
5.Ndizosavuta kugwiritsa ntchito njira imeneyi
6.Ili ndi mtengo wotsika kwambiri