... :1.0-1.2mm 1.Name: window rollers, sliding window roller,window pulley,sliding door roller2.Material: iron, plastic,nylon3.Thickness: 1 ... offered8.Easy to install; safe and durable9.First-class,high quality10.Strict production style11.Standard export packing12.Strict inspection before ... for over 12 years. We can guaranteed with the reliable quality and afer-sale service. Please read our website, if ...