Derusting and hardening for large and medium sized steel castings, iron castings, forgings, heat treated work pieces, steel plates, springs, structural steel work pieces, containers and rolled pieces.

• 大、中型铸钢件、铸铁件、锻件、热处理件、钢板、弹簧、钢结构、集装箱、轧辊除锈及强化处理。