When sourcing for B2B purposes, prioritize the engine type and power output. For heavy-duty tasks, 4-stroke engines are preferred due to their higher torque, lower emissions, and fuel efficiency compared to 2-stroke models. Additionally, check the cutting width (typically 400mm to 500mm for walk-behind mowers) and the blade material, ensuring it is made of hardened manganese steel for durability. For robotic or electric cutters, verify the lithium battery capacity (Ah) and continuous working time to ensure it meets the operational scale.