The omission of heat straightening may save energy and thus reduces production cost.
特别是取消热调直可节约能源，从而降低生产成本。
The mandrel is the most important heat-forming tool in MPM and its application effect decides the production cost of pipes.
芯棒是限动芯棒连轧钢管机组中最重要的热变形工具，其使用效果决定着钢管生产成本的高低。
Direct coal-burning, quantity of heat, high output, and reduce the production cost.
直接燃煤，热量大、产量高，降低生产成本。
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