... etc. Chinese Brands like HRB, ZWZ, LYC, TWB, NWH, KG, F&D, C&U, W&Z, etc. Bearing Types: deep groove ... , miniature bearings, non-standard special bearings, etc. Pulley type: window and door pulleys, shower pulleys, etc. Plastic Pulleys with 608zz ... Korea and the United States and Southeast Asia.Specification:Name: window roller, window pulley ,wheel2.Material:Nylon and bearing3.Surface treatment: plated ...