... 25kg per caster 2.Wheel diameter:40~50mm3.Caster material: Rubber,pressed steel,zinc plated4.Chrome, zinc or nickel plating ... professional caster company which integrates design, manufacture, assemble, inspection and exportation. Our 20 R&D team can work with you ... from 15mm to 300mm, materials include rubber, TPR, PU, plastic, nylon, cast iron, pneumatic, phenolic and sandwich, etc. Our housings have ...