Surface quality of billets shall be free from all harmful defects like surface cracks, seams, laps, folds,scabs blowholes,deep ripple marks, aluminum patches, slag patches etc.
英
美
- 钢坯表面要避免一些瑕疵譬如裂纹，接缝，重叠，折痕，抓痕，深的波纹，斑点等。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
