bunny rabbit
1 Answer
TSC
Prior to WWII, toothpaste was packaged in small lead/tin alloy tubes. The inside of the tube was coated with wax, however, it was discovered that lead from the tubes leached into the product. It was the shortage of lead and tin during WWII that led to the use of laminated (aluminum, paper, and plastic combination) tubes. At the end of the twentieth century pure plastic tubes were used.
SOURCE: http://www.saveyoursmile.com/toothpaste/toothpaste-a.html
| 14 years ago. Rating: 1 | |
Top contributors in Toddler & Preschooler category
Unanswered Questions
Window Cleaning in Mississauga
Answers: 0
Views: 4
Rating: 0
Nhà Đài I9bet
Answers: 0
Views: 6
Rating: 0
fanyi-youdaopc
Answers: 0
Views: 13
Rating: 0
RS88 RED
Answers: 0
Views: 6
Rating: 0
Nhà Đài I9bet
Answers: 0
Views: 7
Rating: 0
Nhà Đài Vb88
Answers: 0
Views: 7
Rating: 0
Nhà Đài Okking
Answers: 0
Views: 6
Rating: 0
Canada rules – Fairspin wins!
> More questions...
Answers: 0
Views: 14
Rating: 0