Sliding pulley
Features:
1) The housing is made of plastic / aluminum / zinc / pressed steel material
According to customers' requirements
2) The rollers outer ring is produced of plastic materials (POM, PP, PA, nylon)
Or metal material, with excellent surface for sliding windows and doors
3) The inner ring is produced of carbon steel with zinc plated, with excellent
Anti-rust capacity
4) The roller set with long life