TOBO ALLOY GROUP TOBO Alloy Group is a mature, steady and energetic high-tech company, specializing in manufacture of high-temperature alloys and corrosion resistant alloys, such as Hastelloy, Haynes,
Hastelly Pipe Fittings Butt Welding Cap B3 4" SCH80 ASME B16.9 Introduction Butt welded pipe cap is a pipe fitting welded to the end of the steel pipe ...