View all text of Subjgrp 613 [§ 51.2081 - § 51.2091]
§ 51.2091 - Thickness.
Thickness means the greatest dimension between the two semi-flat surfaces of the shell measured at right angles to a plane extending between the seams of the shell.
View all text of Subjgrp 613 [§ 51.2081 - § 51.2091]
Thickness means the greatest dimension between the two semi-flat surfaces of the shell measured at right angles to a plane extending between the seams of the shell.