钢材建材 直缝焊管2 直缝焊管 无缝碳钢管2 无缝碳钢管 无缝合金管 无缝不锈钢管2 无缝不锈钢管 碳钢板 螺旋焊管2 螺旋焊管 不锈钢焊管2 不锈钢焊管 不锈钢板 与中国化学集团(原化工部)下多个公司的国内外工程项目做材料配套业务,主要是钢材、建材、配件类;...
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