For example steel base plated copper, nickel, chromium plating, low layer again tin bronze chrome, multi-layer nickel chrome plating nickel ferroalloy, chrome, and so on.
例如钢基上镀铜、镍层再镀铬、低锡青铜上镀铬、多层镍上镀铬、镍铁合金镀层上镀铬等等。
2
Regression analyses of the relations between strength and hardness of chrome - Nickelsteel are carried out, the relevant formulas of the regression relations are set up.
对铬镍钢强度与硬度之间的关系进行了回归分析，建立了相应的回归关系式。
3
Machined brass construction, chromenickel plated body, EPR rubber check disc assemblies and Buna 'n' seals, stainless steel springs and pressure plates are standard.