Can, crutch, turpentine, spray gun, all-purpose glue, lunch box, belt, medical tube, pressure cooker, mower blade, fission battery, induction module, etc. It's all materials for homemade weapons. Try to collect them. To make weapons, you need to get the drawings of the weapons. This can be bought in stores, and some can be found in boxes in the wild (the location seems to be fixed, I don't remember the details. )

Other plates, cups, coffee pots, teddy bears, deformation cans and so on are completely useless, but they can be used as bullets for universal launchers.

There are two kinds of books, one is burning books, which are useless and can be used as bullets for universal launchers. The other is called pre-war books. This civil servant with a fraternity in Arlington Library will buy it from you. I remember the bottle cap of 100.

Scrap iron is the material for making some weapons. It can also be exchanged for money from the elderly at the water station in the nuclear bomb town, or collected underground in the zombie city of the history museum, where it can be exchanged for medical items.