... LF+VD 2,Large stock with competitive price Spring steel:1)flat bar spring steel 2)Material:Q195-235,Q235B,A36 ... 3,good antifatigue property 4,excellent mechanical property5.Applications: Spring steel for gas engine, car within 200°Chardness after annealing ≤255HBS ... Note:1. According to national standard (GB)for our products, if not, supply according to national standards(GB ...