The weight of the paperboard is 300gsm. Material: premium paperboard. EASE OF USE AND HIGH SECURITY – A tear strip is designed on the longest side of white cardboard envelopes, which is easy to open.
The weight of the paperboard is 300gsm. Material: premium paperboard. EASE OF USE AND HIGH SECURITY – A tear strip is designed on the longest side of white cardboard envelopes, which is easy to open.