Granite Square Ruler .

Granite right angle ruler bɛnnen don ka verticality sɔrɔ. Avion tiɲɛni sariya ye GB6092-85 ye, ani verticality standard ye GB6092-85 ye. Walasa ka girinya dɔgɔya ani ka baara nɔgɔya, girinya dɔgɔyali dingɛw farala a kan. Tolerance min bɛ kɛrɛ fɛ o ye 0,02 ye. Granite right angle ruler bɛ baara kɛ kosɛbɛ baarakɛminɛnw ka flakɛli, u jɔlen, ani u tilennenw sumani na. Granit square ruler ka minɛnba minnu bɛ sɔrɔ, olu ye plagioclase, plagioclase, olivine, biotite, ani magnetite hakɛ nɔfɛta hakɛ fitininw ye. A bɛ ni kulɛri nɛrɛma ni a jɔcogo ye. San miliyari caman kɔrɔya kɔfɛ, a bɛ kɛ cogo kelen na, a sabatili ka ɲi, a fanga ka bon, wa a ka gɛlɛn kosɛbɛ, wa a bɛ se ka tiɲɛniba mara doni girinmanw kɔrɔ. Granit kɛnɛ bɛnnen don iziniw dilanni na ani laboratuwari sumani baara la. Granite square ruler ka ɲɛfɔli: (kɛrɛnkɛrɛnnenya la, fɛn kɛrɛnkɛrɛnnenw ka kan ka kɛ ka kɛɲɛ ni mɔgɔw sago ye).