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要详细介绍了内商为不锈钢的多层高压容器外U形坡口的单面焊接工艺，从而为不锈钢复合容器的焊接开辟了一条新途径。
To detail the single-sided welding process of the U-shaped groove outside the multi-layer high-pressure vessel of stainless steel in China, which opens up a new way for the welding of stainless steel composite containers.