Samfurin Lamba: 400×72.5x66N
Gabatarwa:
Waƙar roba tef ce mai siffar zobe wacce ta ƙunshi roba da ƙarfe ko kayan fiber.
Yana da halaye na ƙananan matsa lamba na ƙasa, babban ƙarfin juzu'i, ƙaramin girgiza, ƙaramar ƙararrawa, ƙarancin wucewa mai kyau a cikin filin rigar, babu lalacewar hanya, saurin tuki mai sauri, ƙaramin taro, da sauransu.
Zai iya maye gurbin tayoyi da waƙoƙin ƙarfe ta hanyar amfani da injinan noma, injinan gini da ɓangaren tafiya na motocin jigilar kayayyaki.