Cone Crusher Concave: 1. One of the most essential parts for mining machinery industry. 2. Wear-resistant; Long service life; 3. Material standard:high manganese steel alloy steel;JIS,DIN,ASTM,BS., Cone crusher parts is widely applied in mining, metallurgy, construction, road building, chemical and phosphatic industry, and is suitable for hard and mid-hard rocks and ores.