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See Chinese contents: GB/T 39452-2020 GB/T 39452-2020: Leather -- Physical and mechanical tests -- Tests for adhesion of finish
This Standard specifies the determination method for the adhesion between the leather finishing layer and the leather (or between the finishing layer and the finishing layer). This Standard applies to tests for adhesion of finish of various types of smooth leather after finishing. This Standard applies to leather whose coating thickness is not less than 15 ??m, as well as film leather.
