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This test strictly follows the ISO2415 international standard and the national special equipment safety technical specifications, simulating the stress scenarios under extreme working conditions. During the test, the bow shackle was fixed on a hydraulic tensile testing machine, and its deformation, critical breaking point and material stability were tested by gradually increasing the load to more than 4 times the rated working load.

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Test data shows that the shackle remains structurally intact when reaching the ultimate tensile force of 25 tons, the shackle body has no cracks, the thread has no slipping, and the shackle pin has no plastic deformation, which fully meets the industry safety requirements of "breaking load is not less than 4 times the rated load".

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As a key connector in the fields of lifting, hoisting, ship anchoring, etc., the safety performance of the bow shackle is directly related to the life of operators and the safety of equipment. After passing this test, the product has obtained certifications from China Classification Society (CCS), EU CE and other countries, and is expected to be widely used in major projects such as offshore wind power installation and bridge construction.