1810: The world's first tinplate canister was invented by the British and patented. At that time, a can expert can do 60 empty cans a day.

1900: invention welding machine.

1947: The United States invented the canning machine, instead of labor.

1965: Aluminum easy to open the lid used in canning.

1973: Iron easy to open the lid used in canning.

1990: Canning technology has been upgraded to more than 1,000 cans per minute.