The most preferred bat to use for an autograph would be a bat that is the closest to the size, and model the player used. The better the quality of the bat the higher resale value it will have. If you can get the signature authenticated on the spot do it. Signature that are not properly authenticated could sell at half the market value or less.
Blue Sharpie would be most preferred to sign a bat. If the bat is a Black or a dark color you should use a color that will stand out the most like silver. Be sure to allow the ink to fully dry before placing the bat in a protective tube or "Sock". If the ink is not completely dry the ink will smear. Bats that have a coat of shellac will take longer to dry. When displaying the bat be sure to keep it away from sunlight. Even reflected sunlight will take it's toll over time. The Ideal conditions for display would be indirect lighting, at a room temperature of 65 - 70 degrees, and 50% humidity. Always check your signatures periodically for signs of fading or deterioration, and avoid excessive handling.
Technetium is not used in baseball bats.
Baseball Bats!!
They used wooden bats in the 185s.
No wood bats in AAU.
Baseball bats generally made from wood or metal. Metal baseball bats are usually made of aluminum or an aluminum alloy.
To hit the ball.
no. graphite is used in pencils
It all depends on what league, but in the Majors thousands and thousands of bats are used.
Wooden bats are made on a lathe.
sapwood
they used wood bats,no cleats ,and gloves with no grip.
Autographs.