7050 хайлшны том хуурамч хоолойн хэт авианы согог …
Contents0. Introduction1. Problem Description1.1 Forged Pipe Information1.2 Process Route1.2 Discovery and situation introduction of point defects in ultrasonic testing exceeding the standard2. Cause analysis2.1 Raw Material/Ingot Inspection and Analysis2.2 Inspection and Analysis of Heat Treatment Process2.3 Inspection and analysis of the forging …