·          Material:65 Mn spring steel

 Technological process: After stamping, heat treatment, Craft refined

 Size: All kinds,according to customers' drawings and samples.

              The quality: Good elasticity, good hardness, good abrasion resistance
The new colter is forged of the 65 percent manganese steel with high quality. The body of the colter is not easily deformed and broken. Through 500 centigrade normalization treatment, the tip of the colter is improved 50 percent in the hardness and wear-resistance, so it can be used for longer time than before. The surface of the colter  can't be rusty through advanced rust-proof treatment.