... .OEM/ODM services offered 3.Professional Valve Manufacture 4.High quality,reaonable price Aoshang ... machine 2,Type:threaded,quick-installed,welded Standard/Material/Size 1,Standard:SMS,DIN,3A,ISO,IDF2,Material: ... ~3.2um Polishing:Ra0.4~0.8um Handle: Standard configurationMetal handle,reinforced nylon handle. Selective configuration:adjustable ... projects Stainless Steel Sanitary Welding Butterfly Valve