BS 4978(1973) : 1973被替代
SPECIFICATION FOR TIMBER GRADES FOR STRUCTURAL USE
出版：British Standards Institution
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基本信息
标准编号： BS 4978(1973) : 1973
发布时间：1973/1/1 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：23
标准简介
Deals with sizes,processing reductions,knots,fissures,slope of grain etc.Covers timber evaluated by stress grading carried out by machine or by eye.Includes some illustrations. Similar to ISO/R 1030,ISO 2299,2300 & 2301
替代本标准的新标准
