I-LT-JJ94 Umatshini wokulinganisa wesayizi yesitulo seofisi (kubandakanywa ne-64kg yokulayisha ibhloko)

Inkcazelo emfutshane:

Le mveliso inokuqinisekisa ngokuthembekileyo imilinganiselo kunye nedatha yezitulo zeofisi ezifunwa ngumgangatho, kwaye ikwabonelela ngeprotractor yedijithali kunye nesikali somlinganiselo ochanekileyo wee-angles kunye nemilinganiselo ngokuhambelana nomgangatho we-EN 1335-1: 2000.