| http://www.w3.org/ns/prov#value | - KOS Flue Cement is a high temperature (to 1250?? C) ready mixed fireproof mortar paste , designed for the safe installation/jointing of Type A1 (BSEN1857) concrete flue liners (previously known as class 1) for use with domestic fires and stoves e.g. coal, wood burning or gas (including flame effect).
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