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90.24 各种材料(例如,金属、木材、纺织材料、纸张、塑料)的硬度、强度、压缩性、弹性或其他机械性能的试验机器及器具:
90.24 Machines and appliances for testing the hardness, strength, compressibility, elasticity or other mechanical properties of materials (for example, metals, wood, textiles, paper, plastics):


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