Important General info
Common Units conversion table
Table for composition of common alloys
Table for corrosion resistance of common industrial liquids to certain metals / Alloys.
Table for suitability / compatibilty of various industrial liquid with elastomers
Various API Plans for Mechanical seal
Link for calculating viscosity correction factor
Table for Vapour pressure / Sp. Gr. of water at different temperature
The above info is given without any prejudice.