What is the material of the hardware? What are the materials of hardware?

1. Hardware tools are made of gold, silver, copper, iron and tin.

2. Traditional hardware products, also known as "hardware". Refers to gold, silver, copper, iron and tin. After manual processing, it can be made into works of art or metal utensils such as knives and swords. The hardware in modern society is more extensive, such as various manual, electric, pneumatic, cutting tools, automobile maintenance tools, agricultural tools, lifting tools, measuring tools, tool machinery, fixtures, cutters, molds, cutters, grinding wheels, drills, polishers, tool accessories, measuring tools, cutters, abrasives and so on.