Fiber-reinforced composite
A fiber-reinforced composite (FRC) is a composite building material that consists of three components: the fibers as the discontinuous or dispersed phase, the matrix as the continuous phase, and the fine interphase region, also known as the interface. This is a type of advanced composite group, which makes use of rice husk, rice hull, rice shell, and plastic as ingredients.
Source: Wikipedia — Fiber-reinforced composite (CC BY-SA 4.0)