... 4. Perfect Service 5. On Time Delivery Our advantage:1:steel grade:1018,1020,1045,4140,4130,4340,4330,8620,9840 ... :application:structural steel bar, die steel bar, tool steel bar and so on.4.Excellent after-sales service5.Delivery condition: Hot forged, Heat-treatment (Normalized ... with cutting, turning, cold drawn, quenching and tempering, solid fusion heat-treatment on rough machining.