Housing made of pressed steel , zinc plated double ballrace swivel head.
Housing made of pressed steel, zinc plated, double ballrace swivel head, dustproof seal
Wheel material :plastic.
Husing made of pressed steel , zinc plated, double ballrace swivel head, dustproof seal
Wheel material :polyrethane.
Housing made of pressed steel , zinc plated, double ballrace swivel head dustproof seal
Wheel material :plastic core black rubber.
Housing made of pressed steel , zinc plated, double ballrace swivel head, dustproof seal.
Wheel materials is steel core black rubber.
