What materials are mainly used for jewelry produced by jewelry factories

I always thought that all jewelry is made of the same material, but the color of the plating is different. Later, I learned that there are many kinds of materials. What are the main ones?

According to the different preferences and needs of consumers, jewelry factories will produce jewelry of different styles, styles and grades.

According to the different styles, styles and grades, different materials should be selected.

The main materials of jewelry factory production are: copper, alloy, stainless steel, resin, silver, etc. Among them, the alloy includes zinc alloy (environmental protection material) and magnesium alloy (not environmentally friendly). Silver is the higher cost of these materials, so the grade of silver jewelry is also higher, while the alloy is the lower grade of these materials.

Different materials use different production processes and equipment. Therefore, what kind of jewelry factory can only produce jewelry of what material, such as silver jewelry factory, can only produce silver jewelry, but not alloy jewelry. and stainless steel jewelry.