S690 QL, S690 QL high yield Steel plates, High strength steels S690 QL Plates S690 QL is a high return structural steel evaluation created in consistence with EN 10025:6:2004. S690 QL, S690 QL high yield Steel plates, High strength steels S690 QL Plates. https://www.wearplates.co.in/S690QL-EN10025-high-structural-steel-plates.html