sdpdlq.cn
(外螺,换热器,锅炉用,SA210C水冷壁)螺纹烟管,螺纹管,锅炉管-天津铭德金属
天津铭德金属材料贸易有限公司主营：螺纹烟管,外螺纹钢管,换热器螺纹管,换热器锅炉管,锅炉用螺纹管,水冷壁管屏,SA210C水冷壁内螺纹管等。欢迎各界朋友前来参观、考察：15922148188
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