We have to understand what a sign is?
2021-05-05
A sign refers to a brand that is fixed on the product to provide users with information such as manufacturer's trademark identification, brand differentiation, and product parameter inscription after ···
So what are the classifications of signs?
2021-05-05
The scope of signs is very wide and can be divided into two categories: metal signs and plastic signs. The material of metal signs can be divided into flat signs, silk-screen signs, corrosion signs, e···
