詳細規格及用途描述

Frame made of Nylon cover with Glass Fiber, and is equipped with precision bearing, and promote stable and easy to use.This swivel caster has total lock. It also has stable braking capacity and not be easily rust.Wheel centre made of Polypropylene Impact Copolymer and Polyamide.Wheel tread made of Polyurethane.There are two precision bearings in swivel head and wheel center.