Sorry, I made a mistake, these tables are not in the book of the 50s. These tablets are located at the very beginning of the book called "Тудвасев В А - Рекомме

Sorry, I made a mistake, these tables are not in the book of the 50s. These tablets are located at the very beginning of the book called "Тудвасев В А - Рекоммендации сварщикам по ручной и дуговой сварке сосудов и трубопроводов работающих под давлением. Книга 1 - 1996" I hope your Russian is enough good for reading this book because my copy is djvu without OCR.