Dutse daidai ka'idoji（Marmara daidai rules(Yawancin amfani da ganowa na layi daya da tsaye.Dutse daidai ka'idojiBabban ma'adinai abubuwa ne fugitive dutse, sloping dutse, kadan adadin zaitun dutse, baƙar fata da kuma trace magnetus ma'adinai, baƙar fata launi, tsarin daidaito, bayan miliyoyin shekaru tsufa, daidai tsari, kyakkyawan kwanciyar hankali, babban ƙarfi, high tauri, iya kiyaye high daidaito a karkashin nauyi kaya. Granite daidai ma'auni dace da masana'antu samarwa da kuma dakunan gwaje-gwaje ma'auni aiki.
Features da Amfanin da granite layi daya ma'auni:
1, Good rigidity, high tauri, ƙarfin wear juriya
2, dutse tsawon lokaci _ tsohon lokaci, tsarin tsari daidai, faɗuwa mai faɗuwa _ ƙananan, matsin lamba na ciki ya ɓace gaba ɗaya, ba ya karkatarwa, saboda haka daidaito mai girma.
3, ba tsoron acid, manganese ruwa lalacewa, ba tsaki, ba dole ne a rufe man fetur, ba sauki m ƙura, free kulawa, kulawa mai sauki, da dogon rayuwa.
4, ba magnetization, a lokacin ma'auni za a iya motsa a cikin sauƙi, babu hankali, ba tare da tasirin zafi ba, da kyau kwanciyar hankali a cikin jirgin sama.
5, babu wani scratch, ba tare da yanayin zafin jiki ya hana shi, kuma za a iya kiyaye daidaiton ma'auni a yanayin zafin jiki na yau da kullun.

Dutse daidai ka'idoji	Bayani (mm)	Aikin saman saman saman saman saman saman saman saman saman saman saman saman saman saman saman saman saman saman saman saman saman saman saman saman saman saman saman saman saman saman		Tsaye tsakanin aiki		Bambancin tsawon H.W a kowace nau'i
		Daidaito darajar μm
		00	0	00	0	0	0
	160×25×16	1.5	3	20	40	1.5	3
	250×40×25	2	4	30	60	2	4
	400×63×40	4	8	40	580	4	8
	630×100×63	6	12	50	100	6	12