CHAPTER XI.

ON WORKING IN STEEL 89

Hand Forging Steel 89

Welding Steel 89

Tempering 91

To Restore Burnt Steel 93

Annealing Steel 94

To Blue Steel 94

To Remove Blue Color From Steel 94

Tempering Knife Blades 95

The Lead Bath for Tempering 96

Test for Good Steel 97

Etching on Steel 97

The gunsmith's manual · 第 11 / 45 章