Making tube sheet by cap.

制作管帽均采用板材。

The design efficiency and quality of tube sheet has improved greatly.

程序的使用有效地提高了管板的设计效率和设计质量。

Finite element analysis is adopted to calculate secondary quench exchanger tube sheet of ethylene plant.

对乙烯装置第二急冷锅炉的管板进行了有限元分析。

About welding equipment we have two tube sheet welding machines and hundreds of all types of welding machines.

焊接设备方面我们配备有管板自动焊机两台及其它各类焊机近百台。

Practice shows that different knife route for machining tube sheet will cause a very big difference of it's length.

实践表明，加工管板不同的走刀路线其长度相差极大。