Composition of fiber optic heat shrink tubing: The heat shrink tubing is composed of transparent heat shrink tubing, hot melt tubing, and stainless steel needles (or ceramic/quartz rods).

1. The transparent outer layer facilitates the detection of whether the fiber optic joint is connected correctly, allowing the fiber optic to be assembled easily and safely. After contraction, it can maintain the optical transmission characteristics of the fiber optic, providing strength and protection for the fiber optic joint. Can avoid damage to optical fibers during installation.

2. Protect the fiber optic after fusion, and the reinforcement inside makes the contact more secure.

3. After the completion of fiber optic fusion, it serves as a protective sheath, with the purpose of waterproofing, dust-proof, and anti attenuation.