1.PVC ibikoresho, insinga yibanze hamwe nuburinzi, kurinda ibyiciro bibiri, birwanya gukurura
2.Ikizamini gikomeye, kugoreka swing nibindi bipimo byatsinze ikizamini gikomeye kandi cyizewe, gifata buri kantu kose
3.Kwishyuza + kohereza muri imwe, tanga gukina byuzuye mubikorwa kandi urebe icyarimwe kwishyuza no kohereza amakuru