... ultrasonic spray, spray welding .Application effect: increase the service life to 3~8 times for wear and corrosion resistant ... spray, ultrasonic spray, spray welding Application effect: service life more than 20 years for corrosion resistant elements ... (); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); Thermal power system,High speed train,Chemical industry,Paper making industry,Steel rolling ...