1. Mansamara sariyaw .
Imperial steel pipe bɛ jira faaba "dn" fɛ. A bonya ye DN15 (pipe 4-inch), DN20 (pipe 6-inch), DN25 (pipe 1-inch), DN32 (pipe 2-inch 2-inch), DN40 (pipe 1,5-inch), DN50 (pipe 2,5 (2,5-inch pipe), DN80 (3-inch pipe), DN100 (4-inch pipe), 4-inch pipe), 4-inch pipe),. (pipe 5-inch), DN150 (pipe 6-inch), DN200 (pipe 8-inch), ani DN250 (pipe 10-inch). Misali la, DN25 (25 mm) jibolisira bɛ bɛn imperial 1-inch pipe ma, min bɛ wele fana ko 8 inch pipe ka kɔn Liberation Army ɲɛ. DN15 jibolisira bɛ bɛn Imperial 1/2-inch pipe ma, min bɛ wele fana ko 4-inch pipe ka kɔn Liberation Army ɲɛ. Misali la, DN20 jiboli-minɛn ye 3/4" Angletɛri sariya ye, a bɛ fɔ fana ko 6-inch pipe ka kɔn liberation movement ɲɛ.
2. Dugukolo kan sariyaw .
Dugukolo kan nɛgɛdaga min bɛ wele ko standard steel pipe, o sinsinnen bɛ insitiri kelen tilali kan yɔrɔ fitininw na. Fɛn minnu ɲɛfɔlen don, olu ye 1/8, 1/4, ani 3/8 inch ye, o bɛ bɛn 1-inch ani 7-inch pipew ma minnu bɛ dɔn kosɛbɛ. A bonya fitininw bɛ fɔ i n’a fɔ 1/16, 1/32, ani 1/64, hali bi u bɛ insitiriw la. Ni jatebɔlan ni jatebla bɛ Se ka Dɔgɔya (misali la, jatebla ye 2, 4, 8, 16, walima 32 ye), u ka kan ka Dɔgɔya.
3. Nɛgɛ pipe hakɛ jateminɛ .
Kisɛ jateminɛcogo formulaw nɛgɛ pipe suguya wɛrɛw la, olu bɛ danfara. Dugujukɔrɔ, Miagoo bɛna girinya jateminɛcogo caman jira waati kunkurunnin kɔnɔ:
Nɛgɛ girinya bulama (kg)=0.00617 x cɛmancɛ x janya x janya;
Nɛgɛkɔrɔsigi girinya (kg)=0.00785 x Side bonya x Side bonya x janya;
Nɛgɛ fla girinya (kg)=0.00785 x janya x karamɔgɔ x janya.