The advantages of the C Series is the sturdiness of the steel bracket: very thick, even on par with Heavy duty standard. The steel bracket is Niken coating so it is very resistant to scratch, rust and corrosion. However, the Solid rubber wheel's load capacity is somewhat held back the strength of the bracket.

Favored by many Japanese and Korean customers. Largely thanks to high quality rubber: tough, elastic, wear-resistant and non marking. Both single and dual lock options are available.

The bracket off Gia Cuong Thinh's K Series has 5.5 mm thickness steel and Zinc plate to prevent rust and corrosion. The PU is mold on Steel core is quite sturdy, good wear and tear resistant. Do note that this one has Steel hubs: small but very effective in dealing with dust intrusion.

Ultra heavy duty on dual wheel with load up to 1,500 kg/ 01 wheel. The wheel material is PU on reinforced cast iron. The size of each wheel is Ø200 × 50 mm. Currently, Hao Phong provides Swivel and Rigid casters. Warranty 6 months from date of purchase.