from the beginning of the 20th century, these are... nails, with which nail production began, with a vyandyshko look, these are nails of the beginning 21st century, that is, on nails we show the development of nail production, where it began and what it continues to be 100 years later, well, i see that the first samples and what was made at the beginning of the 20th century, they even visually differ, and the technology for creating them has changed, the technology, of course , has changed. and firstly, metal nails, they were forged, forging a round rod is much more difficult, so the first nails were always square, and the first machines that made nails, they also made square ones nails, initially the nail shaft and head were made separately, and then workers connected them manually, then at the end of the 19th century , machines with a full production cycle began to appear, only in 1900... now the company produces as many as 150 types of nails. well, i'm heading off further , new products are being introduced into production, the next point of my route is the city palace of culture. i will get