对紫铜管与低合金钢管的焊接特点进行了分析，通过工艺试验研究，找出了较合理的焊接工艺方法。
The characteristics of the weld between copper tubes and low alloy tubes were analysed, and reasonable weld technology methods were found out through some experimental investigations.
用于高压化肥设备和管道用优质碳素钢、低合金钢和合金钢无缝钢管。
High quality carbon steel, low alloy steel and alloy steel seamless pipes for high pressure fertilizer equipment and pipeline.
通过对压力容器常用的3项碳素钢和低合金钢无缝钢管标准的对比，对质检特函[2010]86号文有关碳素钢和低合金钢无缝钢管的技术措施提出了自己的看法。
With the comparison of three standards for carbon and low alloy steel pipes used in pressure vessel, the opinions of the author on the clauses in the document AQSIQ [2010] No. 86 were presented.
通过对压力容器常用的3项碳素钢和低合金钢无缝钢管标准的对比，对质检特函[2010]86号文有关碳素钢和低合金钢无缝钢管的技术措施提出了自己的看法。
With the comparison of three standards for carbon and low alloy steel pipes used in pressure vessel, the opinions of the author on the clauses in the document AQSIQ [2010] No. 86 were presented.
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