*Idan kuka yanke manyan kumfa zuwa tsayi daidai gwargwado, yanke su.
*Kayan aikin da ake buƙata don masana'antar kera kumfa.
Injin yankan takarda daga isometrics, zanen gado, manyan kumfa.
Shahararrun injuna waɗanda injiniyoyin ƙasashen waje suka yi, galibi injunan shawarar.
Wannan abin yankan kumfa a tsaye shine mafi asali.
Har ila yau, na'ura ce mai amfani da ita don duk kasuwancin yankewa da kumfa.