Welcome Advantages1.High speed bearing:push and pull easily,durable service2.High quality Nylon roller:with good wear resistance to keep the quiet and smooth running3.Pure nylon material: inclusion-free,high strength,seamless,ultra-smooth,noiselessly4.Manufacturer own mould:direct marketing,superior quality,price advantage
Installation1.According to the length,width,height and weight of door,to choose the matching pullers and running track2.Make sure maximize security and stability of pulley,avoid screw loosely3.Keep upper running track and bottom guide channel vertical,make door ultra-smooth