Big Circle Diameter Optical Fiber Protective Metal Hose is our company's own R & D production as the country's first. The product is imported 316 stainless steel material, greatly enhanced compressive, tensile performance of the hose, complete protection of the optical fiber cable fiber yarns easily broken. Compared to similar hose causing internal wire breakage problem when bent, the product which has a revolutionary improvement, improved bending performance, increase the bending radius,the minimum bend radius of 85mm, better protection of the interior of the line and plastic pipe road.