... international quality standard: ISO 9001:20082.Company: Flywheel Caster Manufacturing Ltd., established in 1981, which is located in ... high corrosion-resistance.Now it already has become a professional caster company which integrates design, manufacture, assemble, inspection and ... is from 15mm to 300mm, materials include rubber, TPR, PU, plastic, nylon, cast iron, pneumatic, phenolic and sandwich, ...