电缆桥架采购指南及选择要点:位于振动桥梁系统中，包括接地部分的螺栓连接，应有弹簧垫圈装置。金属桥架防火，应对金属构件外表面应用符合相关规定的耐火涂料。金属桥架系...
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- Title: 文安县韵泓五金制品有限公司
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