Widely used in general household electrical appliances, toys and low-power electronic products.

Commonly used materials are
Electric wood (lower cost): XPC/FR-1 and semi-fiberglass: CEM-1

Semi-glass fiber substrate (CEM-1) is between glass fiber substrate (FR-4) and
Between Bakelite (XPC/FR-1), it is the same as Bakelite and suitable for punching and drilling.

Single-sided panels also use glass fiber substrates (FR-4) to meet the needs of different occasions, such as vehicles or fire-fighting equipment...etc.