by 
Wisdom
ANSWERS: 1
-
from: http://www.faqs.org/faqs/LEGO-faq/ "LEGO brick are made out of ABS (acrylonitrile butadiene styrene), it is heated to 450 degrees Fahrenheit (232 C), then injected into a mold which is kept at 85 degrees. The pressure used to mold the bricks varies from 24 to 150 tons. The molds are kept within one degree of the 85 degree specification. ABS absorbs moisture, so the entire molding hall is kept at 50% humidity. The allowable tolerance for a brick is two-hundredths of a millimeter, or about eight ten-thousands of an inch."
RELATED QUESTIONS
Copyright 2023, Wired Ivy, LLC