Eventually on the basis of the test result and analysis, the requirements for establishing a standard (the part of tensile performance) of tubular goods for pipelines are int...

 
  • 建議對高鋼級大壁厚管線(xiàn)管采用圓棒拉伸試樣,同時(shí)對屈強比和延伸率進(jìn)行適當調整。
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