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wholesale advanced portable football basketball volleyball pointer ball air pressure gauge pump air pressure gauge
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To measure the air pressure of a basketball, the test method is as follows: on a flat, hard surface, let the basketball fall from a height of 180CM and measure the rebound height. If the rebound height is between 125CM and 145CM, it is normal.
If you use this barometer, the black numbers outside indicate kilograms force per centimeter, and 8 pounds is 8*0.0703=0.5624 kilograms force per centimeter. The red numbers inside the circle are pounds, and you can just look at the number 8.
If you use this barometer, the black numbers outside indicate kilograms force per centimeter, and 8 pounds is 8*0.0703=0.5624 kilograms force per centimeter. The red numbers inside the circle are pounds, and you can just look at the number 8.