Laminated board made of structure of composite materials under sensitive item control(various prepreg and pre-formed parts reinforced by fibers and threads, the specific tensile strength of reinforcing materials is greater than 7.62×14m and specific modu
Laminated board made of structure of composite materials under sensitive item control(various prepreg and pre-formed parts reinforced by fibers and threads, the specific tensile strength of reinforcing materials is greater than 7.62×14m and specific modu