這個應用程序提供金屬，液體，氣體的比重值。
This app is build to Know about specific Gravity value of all types of metal,liquids,gases and other miscellaneous solids.
This app has Specific gravity Value of Following Reference:
1.Metals at 62 Degree Fahrenheit.
2.Hydrocarbons at 60 Degree Fahrenheit.
3.Liquids at 62 Degree Fahrenheit.
4.Gases at 32 Degree Fahrenheit.
5. Miscellaneous Solids at 62 Degree Fahrenheit.