Steel needle chamfering design is crucial for protecting the inner wall of Heat Shrink Tubing  during fiber optic splicing. Our design ensures anti-static and non-stick wall properties, providing strong protection without obstructing fiber optic transmission. The Fiber Optic Fusion Splicer Heat Shrink Tubing, after heat shrinking, exhibits excellent temperature and moisture resistance, safeguarding the splice point and enhancing practicality. With simple operation and fast shrinkage speed, our transparent hot melt sleeves allow for convenient and quick construction while enabling easy visibility of the fiber optic splicing status. Additionally, the 304 stainless steel needles guarantee rust resistance, further ensuring the integrity of the splicing process.