1. Ecoosi Industrial Co., Ltd. Ecoosi manufactures flexible high-temperature ducting hoses made of double-ply silicone-coated fiberglass fabric, mechanically crimped for durability. These ducts can withstand continuous temperatures up to 400°C and short-term peaks of 450°C, making them suitable for hot air, dust, fiber, and gas applications. The ducts are flame retardant, vibration resistant, chemically resistant, and customizable in length and diameter (38mm–1000mm) to meet specific project requirements . 2. Corning High-Temperature Fibers Corning offers single-mode and multimode optical fibers with high-temperature coatings, including optional hermetic carbon layers and high-temperature acrylate layers. These fibers are designed for improved fatigue resistance, high usable strength, and resistance to hydrogen permeation, suitable for extreme environments where fiber optic performance must be maintained under heat . 3. SEDI-ATI Fibres Optiques SEDI-ATI provides customized fiber optic assemblies capable of withstanding temperatures up to 800–1000°C using silica or sapphire fibers. Their solutions include high-temperature acrylate, polyimide, aluminum, and copper-coated fibers, with specialized sealing techniques like epoxy, brazing, or glass-soldering. They also offer hermetic feedthroughs, patchcords, and connectors for industrial and nuclear applications . 4. WEINERT Industries AG WEINERT offers fused silica optical fibers with heat-resistant coatings, suitable for temperature ranges from −190°C to +385°C. They provide engineering support for high-temperature fiber applications, which can be adapted for industrial or telecom installations .
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