45' Stainless Steel Dog Crate https://www.puppypet-factory.com/45-stainless-steel-dog-crate.html
Good Quality Flexible Air Duct Connector https://www.hebeiyida.com/tag/good-quality-flexible-air-duct-connector/
Steel Structure and Prefab House Metal False Ceiling GI Strips https://www.jncreatesteel.com/products/Steel-Structure-and-Prefab-House-Metal-False-Ceiling-GI-Strips.html
6 Swivel Caster Wheels https://www.rccasters.com/6-swivel-caster-wheels/