SMF Flangetech manufactures Back-Up Flanges with High Resistance to Corrosion. SMF Flangetech manufactures Carbon Steel Plate Flanges in all international standards. Flanges are made in international Standards like AWWA, DIN, BS, JIS and CZECH. The Back-Up Flanges with High Resistance to Corrosion has precisely engineered shape and are capable of increasing concentrated pressure on the tips of the teeth on clinch ring. This process decreases the chances of the catastrophic buff failures. The Back-Up Flanges have gained huge acknowledgment for their durability, high resistance to corrosion and better efficiency.