There are few mass-produced PBO fiber companies in the world. my country breaks Japan’s technology monopoly

PBO fiber, the abbreviation of polyparaphenylene benzobisoxazole fiber, is a heterocyclic aromatic fiber. PBO fiber has the characteristics of high strength, high elastic modulus, high dimensional stability, high heat resistance, high flame resistance, impact resistance, friction resistance, light weight and softness. It is known as the “21st century super fiber” and is Ideal textile material.…