... steel,etc.They are used to seal or block off a pipe,like a cover or cap.We can provide a wide ... "~ 100" DN10 ~ DN2500 Pressure U.S. Series: CLASS 150, CLASS 300, CLASS 400, CLASS 600, CLASS 900, CLASS 1500, CLASS 2500 EU Series: PN 2.5, PN ... ), convex surface (MFM), ring joint face (RJ)Packing:wooden cases or wooden pallets or as per customer's requirement astm a105 flange ...