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> 100 / box tyvek expansion envelope mailers 12 x 16 x 2
100 / box tyvek expansion envelope mailers 12 x 16 x 2
Tyvek Expansion Envelopes by Columbian
Superior resistance to water, chemicals, tears
envelope closure: self-adhesive strip - Grip-Seal , open end
- simply peel off release strip
paper weight: Heavy-duty 18 lb.
paper material: Tyvek material
brand name: Columbian Heavy-Duty Expansion Tyvek Envelopes
http:// /a/products/946673/Expansion-Envelopes-Open-End-First-Class/
http:// /PWEVCO815/Columbian-Tyvek-Grip-Seal-Open-End-2-Exp-Envelopes-1st-Cl-12x16-100-Box.html
