WPI-g-00009960–250 g/m²Virgin kraft59% confidence
3100/250 Writing Printing Paper Machine.
Printing paper grade. Permanent ID WPI-g-000099 — verified, source-traced, free.
GSM 45
45g/m²
lighter
GSM 60 · this
60g/m²
WPI-g-000099 · standard
GSM 90
90g/m²
heavier
01
Canonical specification
Basis weight
60–250g/m²
Fiber source
Virgin kraft
printing
Paper type
printing
Confidence
59%
source: wpi
WPI ID
WPI-g-000099
Slug
3100-250-writing-printing-paper-machine
Last updated
2026-04-18
GSM range
60–250g/m²
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