DIN 54221-1975 Testing of textiles quantitative analysis of binary mixtures polyamide 6 6 or polyamide 6 fibres with other fibres hydrochloric acid method《纺织品的检验 聚酰胺66纤维或聚酰胺6纤维与其它纤.pdf

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DIN EN 818-7-2008 Short link chain for lifting purposes - Safety - Part 7 Fine tolerance hoist chain Grade T (Types T DAT and DT)(includes Amendment A1 2008) Ge.pdf

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