日本大同NAK55 NAK55塑料模具钢 NAK55钢材
SKS3模具钢 SKS3钢材..
NAK80模具钢 NAK80..
日本SCM440模具钢 SC..
HPM1模具钢 HPM1材料..
DC53模具钢 DC53钢材..
HPM31模具钢 HPM31..