If anybody has the copy of the following books please upload it.
1. distillation tray fundamental. (pressed by cambridge university)
2. ballast tray design manual. (glitsch bulletin 4900)
There are so many various design available in the market. I just bought yesterday modern style of tray from IKEA. It is so elegant with design and looks really very beautiful with black and espresso color combination. Even I also research a lot about online and You can so many various designs.
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