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Polyolester oil (POE oil) is a type of wax-free synthetic oils used in refrigeration compressors that is compatible with the refrigerants R-134a, R-410A, and R-12. [1] POE oils are used as a lubricant in systems using the refrigerant HFC-134a when replacing CFC-12, as these systems traditionally use mineral oil, [2] which HFC-134a does not mix ...
Wax bullets can be easily constructed by using a cartridge case to punch a cylinder out of a sheet of paraffin wax, and then priming the cartridge using normal handloading equipment. The optional addition of beeswax and/or grease will produce a softer, more flexible bullet than pure paraffin.
Petrolite Corporation was founded from the work of two men, William S. Barnickel and Dr. Frederick G. Cottrell, who both invented ways to separate water from crude oil.. Wet crude, known as roily oil, was a non-profitable substance produced as a by-product of crude oil product
An autoloader or auto-loader is a mechanical aid or replacement for the personnel that load ammunition into crew-served weapons without being an integrated part of the gun itself. The term is generally only applied to larger weapons, such as naval weapons , tanks , and artillery ; that would otherwise have a dedicated person or persons loading ...
Bump fire stocks can be placed on a few common weapons such as the AR or AK families. They can achieve rates of fire between 400 and 800 rounds per minute depending on the gun. [1] By 2018, bump fire stocks in the United States were sold for around $100 and up, with prices increasing prior to enactment of federal regulation. [1] [10]
Gas duster can be used for cleaning dust off surfaces such as keyboards, as well as sensitive electronics in which moisture is not desired. When using gas duster, it is recommended to not hold the can upside down, as this can result in spraying liquid on to the surface.
Gunshot residue from a pistol shot. Gunshot residue (GSR), also known as cartridge discharge residue (CDR), gunfire residue (GFR), or firearm discharge residue (FDR), consists of all of the particles that are expelled from the muzzle of a gun following the discharge of a bullet.
A cattle prod, also called a stock prod or a hot stick, is a handheld device commonly used to make cattle or other livestock move by striking or poking them. An electric cattle prod is a stick with electrodes on the end which is used to make cattle move via a relatively high-voltage, low-current electric shock .