Gabatarwar Samfur:
Samfurin ya ƙunshi tushe samfurin da ƙayyadaddun ƙayyadaddun girman girman farantin tsakiya guda goma,
dace da (0.1 ~ 0.58) mm kauri na samfurin, jimlar 10 ƙayyadaddun bayanai, tare da daban-daban
faranti na tsakiya, na iya daidaitawa zuwa kauri samfurin daban-daban. An yi amfani da shi sosai wajen yin takarda, marufi
da kuma kula da ingancin samfur da masana'antu da sassan dubawa. Yana da na musamman
kayan aiki don gwada ƙarfin matsi na zobe na takarda da kwali.