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随着高温高压容器的广泛应用和高温高压容器的结构由整铸整锻结构向焊接结构转变,大大地开拓了厚板焊接的市场,窄间隙埋弧焊就是在这种形势下取得了令
With the extensive use of high temperature and pressure vessels and the structure of high temperature and pressure vessels from the cast forging structure to the welding structure transformation, greatly open up the plate welding market, narrow gap submerged arc welding is obtained in this situation