运用凝固理论和熔渣理论，研制开发了适用于低合金钢、普碳钢、高碳钢的系列保护渣并成功地应用于连铸生产。
By using solidification and melted slag theory, series mold powders of low alloy steel, plain carbon steel and high carbon steel, were developed and used in production successfully.
铸钢材质升级为低合金钢后，传统的砂型铸造工艺在生产中暴露出了一系列问题。
When low alloy steel replaced carbon steel castings, a series of questions were uncovered in traditional sand casting process.
该系列焊丝主要适用于焊接重要的低碳钢和低合金钢构。
The series of welding wires are mainly suitable for welding important low carbon steel and low alloyed steel structure.
该系列焊丝主要适用于焊接低碳钢和低合金钢结构。
The series of welding wires are mainly suitable for welding low alloyed steel structure.
该系列焊丝主要适用于焊接低碳钢和低合金钢结构。
The series of welding wires are mainly suitable for welding low alloyed steel structure.
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