All designs of weld plates are available. For use as base plates or floor plates when fixing ACT clamps of the Twin Series according to DIN 3015, Part 3. Manufactured from V4A stainless steel (material key: W55) with improved corrosion resistance by the avoidance of metallic and non-metallic contamination during production, machining and storage. STAUFF ACT clamps: Anti Corrosion Technology. Combats crevice corrosion on the tube.