They are made of carbon chromium steel and are hardened and ground.

这些内圈是碳铬钢制造的，并经过淬硬和研磨。

Rolled Alloys Type 410 is a corrosion and heat resistant 12% chromium steel.

金箔合金410是一种耐腐蚀、耐热的12%铬钢。它是使用最广泛的硬化不锈钢。

Stainless steel is a term used to describe high chromium and nickel-chromium steels.

不锈钢是一个描述高铬钢和高镍铬钢的术语。

Movable table guide track is plating chromium steel bars structure, exact and durable.

移动工作台导轨为进口镀铬圆棒结构，定位精度高；

For ferritic chromium steel, its thickness of layer is greater than that of austenite chromium steel.

铁素体型钢的渗层厚度明显大于奥氏体型钢。