用于测定纺织品水平方向燃烧性能，并以蔓延速率来表示。
Used for testing horizontal inflammability of various fabric, which is expressed with flame-spread rate.
用于测定各类纺织织物水平方向燃烧性能，并以火焰蔓延速率来表示。
Used for testing horizontal combustibility of various textile and show with flame spread rate.
用于测定各类纺织织物水平方向燃烧性能，并以火焰蔓延速率来表示。
Used for testing horizontal combustibility of various textile and show with flame spread rate.
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