NF T51-072:塑料.与小火源接触的水平及垂直样品燃烧特性的评定
日期:2010-10-17 00:00
NF T51-072:塑料.与小火源接触的水平及垂直样品燃烧特性的评定
NF T51-072:Plastics. Determination of the burning behaviour of horizontal and vertical specimens in contact with a small-flame ignition source
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08/26 19:28