Yes, "20eth" is not a correct spelling. The correct way to write it would be "20 ETH," which stands for 20 units of the cryptocurrency Ethereum.
Not necessarily. Take it to a gunsmith to find out the correct caliber/gauge.
The expanded form of 57,021 is: 50,000 + 7,000 + 20 + 1
20 gauge is larger
NO!!! A 12 gauge shotgun takes only 12 gauge shells. A 20 gauge shell would fall into the barrel and get stuck about half way to the muzzle. You would be in for a nasty surprise when you put a 12 gauge shell behind it and pulled the trigger!!!
20 year sounds better
12 gauge is thicker than 20 gauge. The lower the gauge, the thicker the sheet metal or wire.
a 20 gauge is a type of many shotguns but it is smaller than a 12 gauge but bigger that a 410. a 20 gauge is a good shotgun for all ages.
20 gauge is equel to 0.8mm
20
The barrel and receiver should have the same serial number.
20 gauge is thicker (the lower the number, the thicker the steel).