Inshingano ziremereye zishyiraho imitambiko yubucuruzi
Kuba 3/16 ″ (4.76mm x 4.76mm) ibyuma byubatswe byubatswe hamwe na 1/4 ″ (6.35mm) icyuma cya diagonal cyuma cyiziritse muburyo bwa mpandeshatu kugirango gishyigikire impera yinteko.