In this blog, ETU-LINK will introduce the flame retardant grades of optical cables. The flame retardant grades of optical cables can be divided into three types, OFN, OFNR and OFNP. Before talking about flame retardant grades, you can first understand LSZH (low smoke halogen free). As early as the mid-1980s, halogen (especially brominated) flame retardant polymer systems were widely used because o...
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