Do you mean a cartridge casing or the actual bullet?? One used in combat or just a WW2 era casing??
You probably have a protein lined casing which is used for pepperoni type sausages which need the casing to shrink with the meat, A summer sausage casing is NOT protein lined and should peel off readily.
a sheep's stomach
It is used for the casing to be able to hold the phone together.
Don't worry. It will go right through him. It won't hurt him at all.
A casing drift is a tool used to measure the internal diameter of a well casing to ensure that subsequent equipment, such as tubing or tools, will fit properly. It is usually run on a wireline or tubing to verify the borehole's condition before installing new equipment.
It is used for the casing to be able to hold the phone together.
unscrew old filter casing and pull out old paper filter , install new filter pushing into place, replace oil seal if provided and hand tighten filter casing to engine.
Thermosetting Plastic
It is used for the casing to be able to hold the phone together.
Fireworks are typically held together by a small paper or cardboard casing known as an aerial shell. Inside this casing, there is a mixture of chemicals that create the colorful bursts and effects seen during a fireworks display. The casing is designed to withstand the pressure buildup generated by the chemical reactions inside until it is launched into the air.
In order to reduce material stresses. Under pressure, a casing has to seal against the pressure inside the casing and atmosphere. As plant pressures increase, besides geometrical designs differences, the other basic items left for the designer to minimize stresses are material selection and casing thickness. A double casing provides another option since it essentially places an intermediate casing in between the single casing. In that way, one casing seals against steam pressure and a lower partial pressure, a few stages downstream of the inlet stage, and then the intermediate casing seals against this lower pressure an ambient pressure.