GZ refers to a coated, bleached pulp board in packaging printing.
Front surface layer = hf white
Inlay = hf white
Back surface layer = hf white
hf white: wood-free white layer of bleached pulp with a maximum of 5% mechanical pulp
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GZ refers to a coated, bleached pulp board in packaging printing.
Front surface layer = hf white
Inlay = hf white
Back surface layer = hf white
hf white: wood-free white layer of bleached pulp with a maximum of 5% mechanical pulp