大型直缝焊管多点弯曲一次性矫直新工艺原理

赵军;宋晓抗;曹宏强;刘娟

Principle of Multi-point Bending One-off Straightening Process for Longitudinally Submerged Arc Welding Pipes

ZHAO Jun;SONG Xiaokang;CAO Hongqiang;LIU Juan

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