论文部分内容阅读
我厂生产潜水泵推力盘(图1),要求表面镀铬、磨平、镀层厚度为0.12~0.15mm。我们原采用镀
I plant production submersible pump thrust plate (Figure 1), requiring the surface chrome, polished, coating thickness of 0.12 ~ 0.15mm. We originally used plating