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[HG/T 3152-1985] 立式椭圆形封头(悬挂式支座) 贮罐系列[现行]
发布时间：1985-11-13
实施时间：1985-12-01
原标准号HG 5-1578-1985
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[HG/T 3153-1985] 立式椭圆形封头(支腿,裙座) 贮罐系列[现行]
发布时间：1985-11-13
实施时间：1985-12-01
原标准号HG 5-1579-1985
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[HG/T 3154-1985] 卧式椭圆形封头贮罐系列[现行]
发布时间：1985-11-13
实施时间：1985-12-01
原标准号HG 5-1580-1985
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[HG 5-752-1978] 单端面小弹簧非平衡型机械密封[已作废]
发布时间：1900-01-01
实施时间：
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[HG 5-754-1978] 单端面小弹簧平衡型机械密封[已作废]
发布时间：1900-01-01
实施时间：
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[HG 5-755-1978] 双端面小弹簧非平衡型机械密封[已作废]
发布时间：1900-01-01
实施时间：
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[HG 5-756-1978] 双端面小弹簧平衡型机械密封[已作废]
发布时间：1900-01-01
实施时间：
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