carbon steel parts. Surface treatment: as cast Weight:2kg Heat treatment:Q+ ... -24HRC We would like to provide you all kinds of carbon steel parts as per your demand.Basic information as follows:1 ... steel casting, carbon steel casting, alloy steel casting3. Certificate: DIN, AISI, ASTM, BS, JIS, ect.4. Heat Treatment, polishing, plating, machining, ect.5. Application: Industrial ...