1, gusiga inyuma cyangwa gusiga inyuma inyuma ni ugusiga inyuma inyuma y'impapuro zo hasi kugira ngo hirindwe ko imyanda isohoka, nyuma yo gusubiza inyuma icyapa kizunguruka ku mugozi ufata ku mpapuro zo hasi. Indi nshingano ni ugukora amabara menshi. Inshingano yo gusiga inyuma inyuma ni ugusiga inyuma cyangwa igishushanyo cy'ikirango cyanditswe n'uruganda inyuma y'impapuro zo inyuma, bigira uruhare mu kwamamaza no kurwanya inyito.

2. Gusiga hejuru bikoreshwa mu guhindura imiterere y'ubuso bw'ibikoresho. Urugero, kunoza ubushyuhe bw'ubuso, guhindura ibara, kongera urwego rwo kurinda, kugira ngo rushobore kwakira neza wino no kuyicapa byoroshye, gukumira umwanda, kongera imbaraga zo gufata wino no gukumira intego yo gucapa inyandiko n'inyandiko. Gusiga hejuru bikoreshwa cyane cyane ku bikoresho bidafata, nk'urupapuro rwa aluminiyumu, impapuro za aluminiyumu n'ibindi bikoresho bitandukanye bya firime.

3, ibikoresho byo hejuru ni ibikoresho byo hejuru, ni imbere kugira ngo byemere inyandiko icapwa, inyuma kugira ngo byemere kole hanyuma bigashyirwa ku bikoresho bigomba gufatishwa. Muri rusange, ibikoresho byose byoroshye bishobora gukoreshwa nk'imyenda yo kwifata, nk'impapuro zisanzwe zikoreshwa, firime, impapuro zivanze, ubwoko bwose bw'imyenda, impapuro z'icyuma zoroshye na rabha, nibindi. Ubwoko bw'ubuso buterwa n'uburyo bwa nyuma bwo gukoresha no gucapa. Ibikoresho byo hejuru bigomba kuba bishobora guhuza no gucapa no gucapa, kugira irangi ryiza, kandi bifite imbaraga zihagije zo kwakira uburyo butandukanye bwo gutunganya, nko gukata imyanda, gusohora imyanda, gukata, gukubita no gushyiramo ibirango.

4, kole ifatana ni uburyo buhuza ibikoresho byo kumenyekanisha n'igice cyo gufungana, bugira uruhare mu guhuza. Dukurikije imiterere yayo, ishobora kugabanywamo amoko abiri ahoraho n'ashobora gukurwaho. Iza mu buryo butandukanye kugira ngo ijyane n'ubuso butandukanye n'ibihe bitandukanye. Kole ni ingenzi cyane mu ikoranabuhanga ry'ibikoresho byo kwifatana kandi ni ingenzi mu ikoranabuhanga ryo gukoresha kole ifatana.

5, gusohora irangi (risizweho urwego rwa silikoni) ni ukuvuga, ku buso bw'urupapuro rwo hasi rusizweho urwego rwa silikoni, rusizweho amavuta ya silikoni bishobora gutuma urupapuro rwo hasi ruhinduka ubuso buto cyane, ubuso buroroshye cyane, inshingano ni ukubuza kole ku rupapuro rwo hasi.

6, inshingano z'urupapuro rwo hasi ni ukwemera irangi rituma ibintu birekura, kurinda kole iri inyuma y'ibikoresho byo hejuru, gushyigikira ibikoresho byo hejuru, kugira ngo bishobore gukata, gusohora imyanda no gushyiramo ibirango ku mashini ishyiraho ibirango.7, irangi ryo hasi ni kimwe n'irangi ryo hejuru, ariko ritwikiriwe inyuma y'ibikoresho byo hejuru, intego nyamukuru y'irangi ryo hasi ni:

(1) kurinda ibikoresho byo hejuru, gukumira kole kwinjira.

(2) Ongera ubukonje bw'umwenda;

(3) Ongera imbaraga zo gufatanya hagati y'ibikoresho bimwe byo hejuru;

(4) Kubuza pulasitiki iri mu gikoresho cya pulasitiki kwinjira mu gikoresho cya pulasitiki, bigatera ingaruka ku mikorere ya pulasitiki, bigatuma imbaraga za pulasitiki z'igikoresho cya pulasitiki zigabanuka kandi icyapa kikagwa.