Under the action of the horizontal and vertical tension of the test zipper, whether the machine can withstand the specified number of reciprocating pulling operations. During the test, the machine drives the slider of the zipper at a constant speed to perform reciprocating motions of 30 times per minute until the specified number of times.
【Product Description】Under the action of the horizontal and vertical tension of the test zipper, whether the machine can withstand the specified number of reciprocating pulling operations. During the test, the machine drives the slider of the zipper at a constant speed to perform reciprocating motions of 30 times per minute until the specified number of times.
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