Composite glass fiber

Since the 1970s, there have been reinforcement materials that combine chopped strand mat, continuous strand mat, roving fabric and roving in a certain order, mainly including the following:
(1) Chopped strand mat+roving fabric
(2) Chopped strand mat+untwisted coarse gauze+chopped strand mat
(3) Chopped strand mat+continuous strand mat+chopped strand mat
(4) Chopped felt+random roving
(5) Chopped strand mat or cloth+unidirectional carbon fiber
(6) Chopped strand+surface felt
(7) Glass cloth+unidirectional roving or glass rod+glass cloth