Hua Yuan Gland Telescopic Joint 1.20 years export trading experience 2.the big scal ,the competitive price Hua Yuan Gland Telescopic Jointmaterial:QT400-15,Q235A ZG230-450,20QT400-15,Q235A ,ZG230-450,20Q235A ,20,16MnQ235A,20,ICr18Ni9TiQ235A,35,ICr18Ni9TiQ235A,35,ICr18Ni9Timain datenominal diameterDNtelescopic volumeL111