Professional Supplier of Forged Flange 1.Size:1/2"-78", DN15-2000 2.material:CS,SS 3.Certifaction:CE,ISO,TUV 4.All ... standard Professional Supplier of Forged Flange1) Product Name:Forged ... MECHANICAL CO.,LTD WHICH IS A PROFESSIONAL MANUFACTURE OFFERING VARIETY OF FLANGE,WN,PL,BL,SO,TH ETC.THE STANDARDS INCULDE ...