WPI-g-000445160–500 g/m²Virgin kraft55% confidence
American Bristol.
Printing paper grade. Permanent ID WPI-g-000445 — verified, source-traced, free.
GSM 145
145g/m²
lighter
GSM 160 · this
160g/m²
WPI-g-000445 · standard
GSM 190
190g/m²
heavier
01
Canonical specification
Basis weight
160–500g/m²
Fiber source
Virgin kraft
printing
Paper type
printing
Confidence
55%
source: wpi
WPI ID
WPI-g-000445
Slug
american-bristol
Last updated
2026-04-18
GSM range
160–500g/m²
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