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Cylindrical helical compression springs of II class and of 4 category made of round steel. Main parameters of coils
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Connections of elements of wooden constructions on a tooth plate connectors. Test methods for determining the values of characteristic and design resistance and compliance
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Civil defense. Network of surveillance and laboratory control of civil defense and protection of the population. General provisions
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Solid counterbores and high steel inserted blade counterbores. Technical requirements
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