What the Triangle Pattern on The Aluminum Collapsible Tube Is Used for?
The aluminum empty tubes need to be marked with special pattern under certain situation The raw aluminum is well characterized by its ductility, airtightness and safety. And it’s commonly used in the manufacture of packaging of medicine, ointment, cream, glue and adhesive etc.. and is closely related to people’s daily life. People with normal eyesight can identify the feature, safety and usage of the product visually from the instruction and images on the packaging etc.. But people with visual disability will necessarily [...]
