... Product Categorycarbon steel flange, stainless steel flange, slip on flange, forged flange, blind flange,etc Airtight surface type RF, FF, MF ... , MFM, TG, RTJ ect.size 1/2" - 84"DN10-DN2000Technology forged,castingservice OEM, design service and buyer label servicecertificate ISO9001:2000 ...