I n’a fɔ nɛgɛw sirilan nafamaw jɔli, fɛn dilanni ani don o don ladonni na, nɛgɛw jogo bɛ nɔ bila poroze lakanani na ani baarakɛcogo ɲuman na k’a ɲɛsin u yɛrɛ ma. Walasa ka nɛgɛso baara kɛcogo sabati, jamanaw ye sariya gɛlɛnw sigi senkan, minnu bɛ fɛnw, hakɛw ani masinw cogoyaw ɲɛfɔ ka jɛya.
Dugukolo kan, nɛgɛ waleyali sariyaw bɛ tali kɛ fɔlɔ fanga sigicogo la i n’a fɔ ISO (International Organization for Standardization) ani ASTM (American Society for Testing and Materials). Misali la, ISO 1481 bɛ hakɛ muɲuliw ɲɛfɔ kunkolo lamininen-kunkolow ye minnu bɛ kɛ ɲɔgɔn fɛ, o bɛ a ɲini ka kɛ sababu ye ka u senkɔni cɛmancɛ jiginni kɛ min tɛ tɛmɛ ±0,1mm kan walasa ka bɛn ni dɛmɛnanw ye. ASTM F1667 kɔni, a bɛ kɛrɛnkɛrɛnnenya la, a bɛ sɔgɔsɔgɔ fanga, a kɔrɔtacogo, ani a bɛ se ka sɔgɔsɔgɔli kunbɛn jɔli nɛgɛw la, o b’a ɲini nɛgɛso galvanizelenw ka to nɔgɔ-ni na sanga 500 ni kɔ kɔgɔ fiyɛli sɛgɛsɛgɛli la.
n ka jamana ka nɛgɛso sariyaw sinsinnen bɛ fɔlɔ GB (National Standard) kan. Misali la, GB/T 349-2016, "Ordinary Round Nails", bɛ nɛgɛw ka kemikaliya ɲɛfɔ, k’a jira ko karɔbɔli hakɛ ka kan ka kɔlɔsi 0,08% ni 0,25% cɛ walasa ka balansi sɔrɔ gɛlɛya ni gɛlɛya cɛ. Ka fara o kan, GB/T 15824-2023 bɛ sariya kɛrɛnkɛrɛnnenw sigi nɛgɛw ka se ka ɲɔgɔn gosi walasa ka a siri ni dannaya ye bɛton walima jiri la.
O sariyaw waleyali tɛ dan sɛnɛko taabolo dɔrɔn ma, nka a bɛ fɛɛrɛ kuraw fana sabati o baara in na. Masina sɛgɛsɛgɛli ni nɛgɛ sɛgɛsɛgɛli fɛ, fɛn dilannikɛlaw bɛ se ka wuluw gɛlɛyacogo ni u sanfɛla furakɛli cogoya kɔlɔsi tigitigi. Baarakɛlaw fɛ, nɛgɛ minnu bɛ o sariyaw dafa, olu bɛ dɔ bɔ kosɛbɛ jɔli tiɲɛni farati la, ka u ka baara kɛ waati janya. Don nataw la, ni ɲɛtaa kɛra fɛn dilanni dɔnniya la, nɛgɛko sariyaw bɛna ɲɛ ka taa a fɛ walasa ka sow jɛlenw magow ɲɛ ani ɛntɛrinɛti porozɛw minnu fanga ka bon-.