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US4711523A Waterproof optical fiber cable 失效
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Waterproof optical fiber cable
摘要:
An optical fiber cable comprising a water blocking layer, an optical fiber disposed inside the water blocking layer and a water blocking material filling the space between the water blocking layer and the optical fiber, the water blocking material comprising a grease having a worked penetration of 85 to 475 as measured according to ASTM-D-712 at room temperature.
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