is the name of a type of epoxy glazing material. fr stands for flame retardant. 4 refers to the factors that differentiate it from other materials. FR4 means two things.

As a construction material, it refers to epoxy laminates reinforced with glass fibers. Used to make

What is A circuit board with FR4 is called an FR4 PCB (fr4 printed circuit board). It is a type of printed circuit board that mainly uses FR4 boards. Originally, FR4 was used as an insulating layer for the PCB. Next FR4 manufacturer adds a layer of copper to both sides of the FR4 board. This makes it a CCL (copper clad laminate). Thanks to FR4, CCL acts as an insulating material. FR4 gives PCBs their strength. In addition, they perfectly absorb moisture and resist fire. This is why these boards are very popular in the market. There is a high demand for FR4 for PCB assembly. FR4 printed circuit boards are compact and easy to design. FR4 boards are popular because they are cheap and can be used in many electrical devices, GreensTone is an professional

Assembly

manufacturing is a specialized process that requires expertise and precision. As a trusted FR4 manufacturer and contract electronics manufacturing factory, we use cutting-edge technology to produce high-quality

Screw terminal strips

Electric switches

Arc shields

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