CSP PISTON, MILITARY QUALITY. We are the first professional production line in China which uses military production line to transform to produce piston of large hydraulic breaker. We have a complete production process of special steel research and development, special vacuum melting, 4500 tons large-scale precision forging, pre heating treatment after forging, CNC precision machining, carburizing and quenching precision control heat treatment, shot blasting finishing and precision grinding. MAKE RELIABLE PISTONS
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