Answer to Question 1
It should never be refilled by anyone with anything, not even the refrigerant manufacturer. The number one reason for not refilling disposable cylinders is to keep all your body parts firmly attached. The number two reason not to refill a disposable cylinder is that the potential penalty for refilling and transporting a non- refillable cylinder is now up to a 500,000 fine and spending 5 years in prison.
Answer to Question 2
Compression fittings, flare fittings, soldering, and brazing.
An intake manifold gasket that failed and allowed coolant to be drawn into the cylinder(s).
Chrysler Hemi V-8 that has two spark plugs per cylinder. The coil on top of one spark fires that ...
How to find the volume and surface area of any cylinder
Cylinder Seal and Its Modern Impression
Cylinder Leakage Test
Cylinder Cubic Question