The 12k carbon fiber plain tube is customized to meet specific requirements with high precision, making it a top choice for industrial and commercial applications that require dimensional accuracy. 12k is stronger than 3k and 6k. Price will be more expensive as well.
3k carbon fiber has a high strength-to-weight ratio, which means that it is incredibly strong for its weight. This makes it an ideal material for use in structures and components that need to be both strong and lightweight.
3K carbon fiber tubes offer several advantages, including a smooth surface finish and sleek appearance, increased stiffness compared to traditional materials, and the ability to be customized to specific requirements.