... price,high precision, excellent quality. Ball Bearing Drawer Slide:1. Material: work hardened cold rolled steel2. ... Ball Bearing SlidesMaterial: Work hardened cold rolled steelMounting: Side, for frame and frameless constructionLoad capacity: 15kgs/450mmFinish ... extension slideMaterial: Work hardened cold rolled steelMounting: Side, for fram and frameless constructionLoad capacity: 35kgs/450mmFinish ...