Chemical Engineering Basics
Oxygen cylinders used for autogenous (cutting/welding) purposes are

Seamless & made of steel
Heat treated before use
Welded steel cylinders
Made by sand casting

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Chemical Engineering Basics
Salvage value is the most flexible criteria for analysing a financial investment. 'Salvaging' means

Mortgaging the obsolete machine/property
Disposing off machine/property, which is no longer useful in the present scenerio
Writing off the obsolete machine/ property
Disposing off a machine/property on as is where is basis

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