Plant Design Systems (PDS)is one of great engineering software that you can use to model 3-D.It use for oil and gas project.

PDS designed by Intergraph.

PDS provided solutions in areas like:

• Piping Modeling
• Equipment Modeling
• Electrical and HVAC Modeling
• Reporting Tools
• Drawing Module
• Geometry algorithms
• Graphic File Standards
• MicroStation APIs and design and cell file formats
• Design of Applications using graphic CAD engines and databases in tandem.

More details of this software, you can check out here

http://www.intergraphconsulting.com

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