... rollers, sliding window roller,window pulley,sliding door roller2.Material: iron, plastic,nylon3.Thickness: 1.0-1.24.Surface treatment: ... and color can be producted according to customer's requirement7.OEM service offered8.Easy to install; safe and durable9.First-class,high ... door clip ,shower hinge,glass connector,furniture hinge , etc.), being in this field for over 12 years. We can guaranteed with ...