Housing: | HD Pressed steel, fabricated construction, Zinc-plated double ballrace swivel |
Wheel: | Solid Nylon or PP ,double precision ball-bearing ? Temperature Range -5 ° C 70 ° C Resistant to Oil,Grease,Water,etc. Good Rolling Resistance |
Housing: | HD Pressed steel, fabricated construction, Zinc-plated double ballrace swivel |
Wheel: | Solid Nylon or PP ,double precision ball-bearing ? Temperature Range -5 ° C 70 ° C Resistant to Oil,Grease,Water,etc. Good Rolling Resistance |