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2、 Physicaland mechanical tests Determination of extension set (. . ) (en). - (IDT)6 -, - . () . , - - , 2015 -, II ISO 1723620141 .12 13 .14 .15 .26 .27 .38 .3 () .3III ISO 172362014 . Leather. Physical and mechanical tests.Method for determination of extension set1 c - , () .2 :ISO 2418:2002 Leather
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