The standard QB/T 2712-2005 Leather - Physical and mechanical tests - Determination of grain strength and extension height, spherical cracking test specifies the method for determining the grain strength and extension height of leather by spherical cracking test. This test is used to evaluate the tolerance and ductility of leather under external force and is important for ensuring the performance and durability of leather.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
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