Unsure of your question. Firearms are not generally used in piping. Please rephrase your question and repost. Sorry.
Mercury is not used in piping.
The star tip is used for a number of things. For example, it's used for piping decorative borders around cakes, for piping flowers on cakes, for piping the egg filling into the cooked egg whites for deviled eggs, and can be used for piping whipping cream on the top of desserts.
The most common use of plastic piping is in plumbing. It's lighter and cheaper than metal piping. Rubberized piping can be considered as garden hose piping.
The purpose of piping as used in plumbing applications is to relay fluids such as water to households.
Commonly used P&ID symbols (Piping and Instrumentation Diagram symbols) for manual valves.
Piping material used for forming gas would be 316L stainless steel.
Because piping class B was over populated, they needed a new piping class. For some reason they decided to skip C and go straight to piping class D
hand guns , long guns, Air guns , Rifle these are used as a firearms .
Plastic piping can be used for a number of things. First, it can be used in plumbing, although not as sturdy as copper. It is used for drain lines frequently. It can also be used as support, such as a lattice for roses.
gunpowder can be used for guns and fireworks
Creating washing machines, cars, guns, cooking supplies, missiles, tubes, piping, super collides, etc, etc.
Yes you are correct the material usually used for residential piping is indeed copper. It is the cheapest and lowest maintenance materials out there.