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DIN 28157 [CURRENT] referenced in following documents:

Document number Edition Title
DIN 28130 2007-07 Chemical equipment - Survey on components of agitator vessels with agitation unit More 
DIN 28159 2006-12 Shaft end for externally coupled glass lined steel agitators - Dimensions More 
DIN 28159 Beiblatt 1 2006-12 Shaft end for externally coupled glass lined steel agitators - Dimensions - Supplement 1: Information concerning strength More