一本由专门制作弓箭的铁匠撰写的书，记录了他的锻造技艺。本卷是该系列的第四部著作。
The fourth volume of a book in which a blacksmith specializing in bows has recorded their crafting skills.
一本由专门制作弓箭的铁匠撰写的书，记录了他的锻造技艺。本卷是该系列的第四部著作。
The fourth volume of a book in which a blacksmith specializing in bows has recorded their crafting skills.