형상 공차 표시법
직각도 출처:http://www.emachineshop.com/machine-shop/GD-T-Perpendicularity-Definition/page563.html 원통도 출처:http://www.emachineshop.com/machine-shop/GD-T-Cylindricity-Definition/page606.html Run out http://www.emachineshop.com/machine-shop/GD-T-Runout-Definition/page607.html 평행도 출처:http://www.emachineshop.com/machine-shop/GD-T-Parallelism-Definition/page..
