San laban ninnu na, yɛrɛ-sɔgɔli-kurunw kɛra fɛn ye min diyara kosɛbɛ diɲɛ kɔnɔ jɔli ni nɛgɛso jɔli porozɛw la. U ka se ka jirisunw sɔgɔ ani ka u siri baara kelen na, o bɛ fɛnw sigicogo ɲɛ kosɛbɛ, wa o bɛ dɔ bɔ baarakɛlaw musakaw la.
Infɔrɔmasiko belebelebaw ni izini sow kɔnɔ, baarakɛlaw ka fisa ni yɛrɛdɔn-kurunw ye minnu bɛ sɔgɔli yɔrɔw sabati ani minnu bɛ se ka sɔgɔsɔgɔ kosɛbɛ. O fɛnw bɛ baara kɛ waati jan-la sigida gɛlɛnw na i n’a fɔ kɔgɔjida yɔrɔw ani izini yɔrɔw.
Dilanbagaw bɛ ka suguw ka ɲininiw jaabi ni drill tail geometry kɛcogo ɲuman ye, ka funteni furakɛli taabolo ɲɛ, ani ka finiko fɛɛrɛw sɛmɛntiya i n’a fɔ Ruspert ani zinc-aluminium coatings. O ko kura ninnu bɛ dɔ fara jirisunw sɛgɛsɛgɛli teliya kan, ka doni seko bonya, ani ka sɔgɔsɔgɔninjɛ kunbɛn.
Ni diɲɛ jɔli bɛ ka bonya ka taa a fɛ, a jirala ko yɛrɛ-sɔgɔli-kurunw jɔyɔrɔ ka bon kosɛbɛ bi sirili siraw la. A ka c’a la, bonya minnu bɛ kɛ ka kɛɲɛ ni mɔgɔw sago ye ani baarakɛcogo caman{1}}sɛgɛsɛgɛli ɲinini bɛ caya, kɛrɛnkɛrɛnnenya la suguw la minnu bɛ ka bonya.
