We approach the issue from four dimensions: materials, craftsmanship, structure, and testing. First, we select imported high-quality raw materials (such as high-resilience PC/ABS composite materials) to ensure the case is durable, pressure-resistant, and has excellent resilience. Second, in terms of structural design, we employ multi-section aluminum alloy pull rods, 360° silent universal wheels, and reinforced frame components. In terms of the manufacturing process, every step undergoes 100% inspection, and outgoing samples are randomly inspected, coupled with our experienced technicians' over 10 years of expertise. Finally, we estimate the product design and manufacturing cycle to ensure the product can operate sustainably for many years under normal usage conditions.