... the equipment have reached or exceed the YB4082 "Ultrasonic testing comprehensive performancetest methods";flaw detector standard has reached GB ... pinch roller,box type substructure,Synchronous deflection,Automatic conveying device, effective length is 12m Out-convey:24 sets ... pinch roller,box type substructure,Synchronous deflection,Automatic conveying device, effective length is 12m Shelf: 8#U-steel ...