... 4. Perfect Service 5. On Time Delivery Our advantage:1:steel grade:4140,4130,4340,4320,EN26,P20,9840,8620 and ... drawn,rolling and so on.3:application:structural steel bar, die steel bar, tool steel bar and so on.4.Excellent after-sales service5 ... , drawing, conditioning, rough solid product melting and heat treatment plate steel