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NC 54-307-1985 Construction Materials and Products Precast Concrete Trusses Quality Specifications《建筑材料和产品 预浇注混凝构架 质量规格》.pdf
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8
NC 43-29-1987 Artificial and Natural Wood Industry Furniture Methods for the Determination of Scratch Hardness in Surface Finish《天然和人工木工业 家具 表面抛光的刮擦硬度测定》.pdf
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6
NC 43-28-1987 Natural and Artificial Wood Industry Furniture Method for Deterraining Impact Surface Finish Resistance《天然和人工木工业 家具 冲击表面的抗磨测定》.pdf
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NC 43-27-1987 Timber Mechanical-Physical Properties Sampling《木材 机械物理特性 抽样》.pdf
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NC 43-26-1987 Timber Woods Treated with Hydrosoluble Salts Against Xilophagous Fungi Testing Method《木料 抗Xilophagous真菌的水溶性盐处理的木材 测试方法》.pdf
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16
NC 43-21-1984 Sawn Timbor Coniferous Species Storage and Natural Drying《锯类木料松类贮藏 自然干枯》.pdf
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4
NC 35-10-1967 Revolving strength of essential oils《香精油的旋转力》.pdf
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3
NC 35-09-1967 Aldehyde and acetone contents in the essential oils《香精油的乙醛和丙酮含量》.pdf
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3
NC 35-08-1967 Sulubility in ethyl alcohol of essential oils《精油在乙醇中的溶解性》.pdf
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NC 35-07-1967 Humidity in essential oils《香精油湿度》.pdf
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