GOWProp calculates gas, oil and water PVT properties based on user selected method: - Gases: Natural Gas, Air and Nitrogen; - Liquids: Oil, Water, Methanol, MEG, DEG and TEG; Gas properties include: Density, Compressibility, Z-factor, Viscosity,Isentropic coefficient, etc. Liquid properties include: Density, Compressibility, Bubble point pressure (oil), Viscosity, Solution Gas-Liquid ratio (oil and water), Specific heat, etc.

WetRO
Quickly and easily design or analyze stormwater collections system pipes with this useful tool. Any number of inlets and pipes and any number of collection systems can be input depending on user's hardware/system memory.

BeamBoy
BeamBoy is a free engineering utility for calculating stress and deflection of structural beams under load. May also be used for shafts. BeamBoy is menu-driven and intuitive.

Astra R-Nesting
Astra R-Nesting system provides entry and storage of information about orders and materials, automatic and interactive nesting, utilization of rests, printing nesting plans and specifications, estimation of cost of works carried out.

OilProp
OilProp is designed to assess the core thermalphysic properties of oil and its derivatives necessary to solve transportation and processing tasks, with the minimum volume of input data.

The GD&T Trainer: Professional Edition
Effective, economical GD and T training on CD-ROM. Contains interactive lessons, technical animations, narration, 3D part drawings, course administration tools. Valuable for designers, engineers, and anyone who uses engineering drawings.