The 248.4g three-hole steel plate armrest column base embedded plate A-02 is an important component for armrest installation. It weighs 248.4g, which is relatively light while ensuring sufficient strength. The three holes on the steel plate provide precise positioning and connection points for the installation of the armrest column. As an embedded plate, it plays a fundamental role in chair manufacturing, especially in the installation of armrests. During assembly, it will be placed in the appropriate position in advance, and then closely cooperate with the armrest column so that the armrest can be firmly supported.