... swivel, fixed , double brake ,threaded stem and solid stem 6.Plastic,Hard rubber and Polyurethane is ravailable 7.Applications: supermarket, display ... is from 15mm to 300mm, materials include rubber, TPR, PU, plastic, nylon, cast iron, pneumatic, phenolic and sandwich, etc. Our housings ... 4. Factory 65 American type thermoplastic rubber threaded stem swivel white plastic caster