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2016-11-30

Laboratory glassware - Boiling flasks with conical ground joints (ISO 4797:2015)
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2016-05-01

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2005-03-16

Laboratory glassware — Interchangeable conical ground joints
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1976-08-01

实验室玻璃仪器 互换锥形磨砂接头
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2007-12-05

Посуда лабораторная стеклянная. Шлифы конические взаимозаменяемые
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