Vacuum refinement technique is clean degree to increase steel with lower the valid measure with deal in miscellaneous quality in inside in steel.
真空精炼技术是提高钢的洁净度和降低钢中杂质含量的有效措施。
Vacuum refinement technique is clean degree to increase steel with lower the valid measure with deal in miscellaneous quality in inside in steel.
真空精炼技术是提高钢的洁净度和降低钢中杂质含量的有效措施。
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