タイトルまたは説明

base jack is composed of jack plate and adjustable nut. The tubular formwork bottom jack was laid aside the bottom of scaffolding, using for adjusting the scaffolding horizontal size. Main feature • Because of screw head adopts cold rolled technology, it has high bearing strength, which can be up to **0KN in a **0mm height, and bear the strength equably. • Screw head works in the adjustable nut can adjust the horizontal size expediently. • The overall weight of U head jack (hollow) is light, easy to use, and also reduces the construction cost.