Severe corrosion prevention for materials in oceaneering.

海洋工程中的材料重腐蚀防护。

The paper introduces the corrosion prevention of the automatic instruments for thermopair,resistance thermometer, transmitter, flowmeter levelmeter in Chemical processes.

介绍工业自动化仪表在氮肥，磷肥生产过程中，对检测控制仪表，热电偶、热电阻、变送器、流量计、液位计的选择。

3 Air cooler and oil cooler shall be made of red copper, albata seamless tube or other corrosion prevention tubing.

3空气冷却器和油冷却器应采用紫铜、铜镍合金的无缝管或其他防锈蚀的管材。