国际认可！热烈祝贺我司通过“CNAS 17034”标准物质/标准样品生产者认可证书！历经风雨，跨越重重难关，经过全体同事的不懈努力，北方伟业计量集团有限公司于近日顺利通过考核并

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昨日纯碱主力合约2305震荡下行，收于2808元/吨，下跌51元/吨，跌幅1.78%。据昨日隆众资讯数据，本周纯碱产量 60.20 万吨，环比减少3.42%，纯碱库存 27.95 万吨，环比+2

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