A4 ibirango birashobora guhuza ibyifuzo bitandukanye mubiro, bikabika umwanya kubikorwa byo gusinya no kuruhuka.
Intangiriro
ikirango kiringaniye, yujuje ibyifuzo byakazi bikenewe hamwe nibikorwa byihariye, no gutanga neza.

Ibirango byanditseho;
Abakoresha bayobora;
Ibikinisho;
Abana b'ikarito;

Ibiranga
umweru mwiza no kureshya, kandi irashobora gucapisha hamwe na lente mugihe ikoreshwa.
Imikorere myiza yo gutunganya, nta kurengerwa no gukata neza;
Kugirango wuzuze ibisabwa byanditse, kole irakwiriye kuranga intoki byikora

Ibicuruzwa birambuye
W1HK1 (70g ifata ibyuma bifata amajwi + 80g yera CCK)
A1MP1 (80g impapuro zometseho + 95g zera PEK)
A8100 (80g impapuro zometseho + 80g zera CCK)