When sourcing hand trucks, prioritize load capacity, which typically ranges from 150kg to 500kg for standard industrial models. Ensure the frame is constructed from heavy-duty tubular steel for durability or high-grade aluminum alloy for a lightweight, rust-resistant alternative. Pay close attention to the nose plate dimensions; a larger, reinforced plate is essential for stabilizing bulky loads. Additionally, verify the wheel type—pneumatic tires are best for uneven outdoor terrain, while solid rubber or PU wheels are preferred for smooth warehouse floors to prevent punctures.