1. Tib kare (tib kare)
Fòmil:
[(Length + Width) × 2 / 3.14 - Epesè mi] × Epesè mi × 0.02466 × Longè × Kantite
Egzanp:
Pou yon 40 × 40 × 1.2 mm (6m longè, 1000 pcs):
[(40 + 40) × 2 / 3.14 - 1.2] × 1.2 × 0.02466 × 6 × 1000
2. Tib wonn (tib wonn)
Fòmil:
[(Dyamèt Eksteryè) - Epesè Mi] × Epesè Mi × 0.02466 × Longè × Kantite
Egzanp:
Pou yon 2-pous (OD 59mm) × 1.2 mm (6m longè, 1000 pcs):
(59 - 1.2) × 1.2 × 0.02466 × 6 × 1000
3. Oval Tib (Oval Tib)
Fòmil:
[(Length + Width) × 2 - 24] / 3.14 - Epesè mi × Epesè mi × 0.02466 × Longè × Kantite
Egzanp:
Pou yon 30 × 60 × 1.2 mm (6m longè, 1000 pcs):
[(30 + 60) × 2 - 24] / 3.14 - 1.2 × 1.2 × 0.02466 × 6 × 1000
