... miniature bearings, non-standard special bearings, etc. Pulley type: window and door pulleys, shower pulleys, etc. Machining & Molding ... the United States and Southeast Asia.Specification:Name: window roller, window pulley ,wheel2.Material: iron3.Surface treatment: plated zinc ... us.Our company is a professional manufacturer of bearings,window & door handles, hinges, etc.If you have special needs, we ...