This tester is used for testing the ring crush strength of the paperboard. With the proper accessories (optional), it's also available to test the column compress, ring crush.

检验瓦楞芯纸及牛皮纸样，其直立方向之耐压强度。配合各种附件可测试纸板之竖压强度、胶合强度及平压强度。

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The productive test shows that the properties of the starch adhesive modified with PVA are stable, and that the quality of paperboard produced with the modified adhesive is improved.

生产性试验表明，经PVA改性后的淀粉胶，性能稳定，所生产的瓦楞纸板质量提高。

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