科标仪器 DT-20型混凝土动弹性模量测定仪耐久性测定谐振频率

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Hebei Kebiao Testing Instrument Co., Ltd

Address:Across from Hongzhi Middle School in Xian County, Cangzhou City, Hebei Province
Tel:13803179681

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13803179681

科标仪器 DT-20型 混凝土动弹性模量测定仪 耐久性测定谐振频率