... ,BS4504,SABS1123,EN1092-1, UNI,AS2129,GOST-128202. Type:Plate,Slip-on,Welding Neck.Thread,Socket weld,Blind3. Size:1/2-78 ... Co.,ltd located in Zhangqiu City, Shandong Province ofChina. Depend on the superiority of production and Sales, Haoyang Flanges are offering ...