T700 is a high tensile strength, standard modulus carbon fiber which is another standard industrial fiber. From the performance point of view, carbon fiber T300 and T700 have the same tensile modulus 230GPa and 7μm diameter; but in the tensile strength, the difference is big, T300 3.53GPa and T700 reached 4.90GPa, than the former was increased by 38.8%, and the elongation of T700 increased by 40%, volume density increased by 2.27%.
Most FPV frames use 3K carbon fiber and some may use Toray T300. These arms are cut from Toray T700 carbon fiber. Get the T700 pieces and the confidence of durability that comes with them.