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2019-05-11 | Piston rod processing technology
The piston rod is processed by rolling, and the residual stress on the surface layer is left to help the surface of the surface crack, which hinders the expansion of the erosion. Thereby, the surface corrosion resistance is improved, and th -
2019-05-11 | Piston rod knowledge
Piston rod testing hardness: Hardness meter measurement is usually divided into lossy measurement and non-destructive measurement. Non-destructive measurement is less damage and cannot be completely damaged. This injury is fatal relative to