... 连续式焊管坯加热炉 weld furnace 焊管坯装炉机 skelp threading machine (连续式)带材和焊管坯轧机 strip and skelp mill ...
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single-effect distillator 单效蒸馏器 skelp threading machellone 焊管坯装炉机 single drawn dressed mixed goathair 单齐花山羊把毛 ..
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skelp threading machine
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skelp threading machine
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