1. Ingano y'umwobo wa rivet ni minimum + 0.1 MAX + 0.2.
2. Ubunini bwose bw'icyuma gikoreshwa muri rusange ni 45% - 65% by'uburebure bwa rivet. Ni byiza kutarenga 60%. Byongeye kandi, uburebure bugufi cyane bwo gukora buragorana. Bivugwa ko 50% - 60% ari byo bigomba gufatwa nk'ibisanzwe.
3. Imbunda ikurura umutwe w’umwuka ishobora guhuzwa n’icyuma gipima umwuka. Imbunda nto, nk’izifite munsi ya 14kg, nazo zishobora gukururwa uretse izifite umurambararo wa 6.4 (6).
Igihe cyo kohereza: 14 Nyakanga-2021