Production
                            
                        
                                                                                                
                            Detection
                            
                        
                                                                                                
                            Quality
                            
                        
                                                                                                
                            technological process
                            
                        
                                                                    
                                Intergranular corrosion test
                            
                                Ultrasonic flaw detection
                            
                                Production workshop
                            
                                Rockwell hardness tester
                            
                                Leeb hardness tester
                            
                                Intergranular corrosion device
                            
                                Pickling in seamless pipe workshop
                            
                                Electric arc furnace
                            
                                Cold drawing of seamless pipe
                            
                                ultrasonic flaw-detecting machine
                            
                                Ultrasonic eddy current integrated machine
                            
                                shock testing machine
                            