Banquet trolleys are high-volume items that can incur high shipping costs. To optimize, source Knock-Down (KD) design products that can be shipped flat-packed; this can reduce shipping volume by up to 60-70%. However, ensure the supplier provides detailed assembly manuals and reinforced hardware. For transaction security, use Made-in-China.com's Secured Trading services to ensure payment is only released after the goods pass a pre-shipment inspection (PSI), focusing on weld integrity and caster rotation.