NBN-EN 29073-3-1992 5000 Textiles Test methods for nonwovens Part 3 Determination of tensile strength and elongation (ISO 9073-3 1989)《纺织品 非织造纺织品的测验方法 第3部分：抗拉力和抗延展力测定（ISO 9073-3-19.pdf

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