C67S spring steel for Ressort en rouleaux pour rideaux métalliques 1.2x70mm

As a professional and original producer and exporter in C67S spring steel for Ressort en rouleaux pour rideaux métalliques 1.2x70mm,which is produce with  a unique processing facility by heat treatment with hardened and tempered  through controlling heating and colling process.and after this process,C67S spring steel for Ressort en rouleaux pour rideaux métalliques 1.2x70mm has good flexibility,so it is better work for Ressort en rouleaux pour rideaux métalliques 1.2x70mm ,so most our customers from Africa,Assia.etc would  like to require our C67S spring to produce Ressort en rouleaux pour rideaux métalliques