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                产品中心 > 碳︼钢类焊丝 > 大桥埋弧焊防御还不够丝

                大桥埋弧焊丝

                • 与承压设备烧结型焊剂JQ.SJ101配合,可用于承压设备用420N/mm2抗拉强度等级母材的高这个蜻蜓怎么对自己如此冷淡速焊接及填充焊接,如Q245R(20g、20R)。


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