Alloy seamless pipe Seamless steel pipe is a steel pipe that is perforated by the entire round steel and has no welds on the surface. Or 40Cr, 30CrMnSi, 45Mn2, 40MnB, and other hot-rolled or cold-rolled combined steels.
First, the alloy seamless pipe process is as follows
1. Alloy seamless pipes ...
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