The sealing tape is slightly solved:

With "wide x-length x thickness", where "width" is the width of the tape, generally with mm or cm, general ≥12mm, common specifications are: 60mm, 48mm, 45mm, 36mm, 24mm and so on; "Long" for the total length of tape, generally with "M" or "code" means (1 yards = 0.9144m), the common length has 50m, 100m, 150m, 200m and so on; thickness is the total thickness of Bopp film + Glue layer (unit: micron, μm), commonly used 45~50μm. such as "50mmx100mx50μm"

The method of calculating the unit price per roll:

Tape industry is usually used "yuan/square meters" to calculate the price of tape, then "the price of tape per roll = width (m) * Length (m) * square price" the specific price according to the cost of a larger float, because BOPP film and plastic are all belong to petroleum products.