Đen 60mm sợi quang nhiệt thu nhỏ tay áo hỗ trợ định vị

Video Description:
Discover the Black 60mm Fiber Optic Heat Shrink Sleeve, designed for enhancing protection of fiber splicing points and supporting positioning. Ideal for FTTH & FTTx projects, this sleeve features a heat shrink tube, hot fusion tube, and steel rod for durability. Customizable colors and sizes available.