... market, etc. 8.Caster with or without brake available 9.Assorted colors (optional)10. Complies with international quality standard: ISO 9001: ... treatment testing to ensure high corrosion-resistance.Now it already has become a professional caster company which integrates design, ... wheel diameter is from 15mm to 300mm, materials include rubber, TPR, PU, plastic, nylon, cast iron, pneumatic, phenolic and ...