Model NO.: pipe flange Type: Pipe Flange Structure: Flanges Sealing Surface: RF The Application: Water,Oil,Gas and Plumbing Specification: Class 150-900 HS Code: 7307910000 Standard: ANSI, DIN, GB, JIS, GOST, BSW Material: Carbon Steel Connection: Flanged Manufacturing Way: Forging Trademark: WANGDA Origin: Zhangqiu,...