B34zip [4K]
If you are referring to technical or construction "Zip" systems, here are the most relevant guides: Installing ZIP System Sheathing: Taping Seams and Corners
"B34zip" most commonly refers to used in jewelry and supply industries for organization and storage . B34P Zip-Lock Bag Guide B34zip
Thicker plastic for sharp or heavier items (often labeled as B34P4 ). If you are referring to technical or construction
Includes a white writable area for easy labeling (often labeled as B34W ). clear plastic for general storage.
Lightweight, clear plastic for general storage.