cold compound extrusion technology
cold compound extrusion technology
冷复合挤压技术
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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This article introduces inner compound metal pipe manufacturing technology of the cold forming method, heat extrusion method and centrifugal foundry method as well as welding method.
介绍了国内外主要开发应用的冷成型法、热挤压法、离心铸造法和焊接法等内复合双金属复合管制造技术。
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