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The factory process behind metal lunch boxes often involved a series of intricate steps. First, the raw materials were sourced and cut into the appropriate sizes. Next, the metal sheets underwent printing, where vibrant colors were applied to create eye-catching designs. The pieces were then shaped, bent, and fused together, creating a sturdy construction that could withstand the rigors of daily use. Finally, a protective coating was applied to guard against rust, ensuring these lunch boxes would endure for years.
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2. Non-Interference Engines Conversely, non-interference engines are designed to prevent such catastrophic collisions. In these engines, there is sufficient clearance between the pistons and valves, ensuring that if the timing belt fails, the pistons and valves do not collide. This design feature significantly reduces the risk of severe damage, allowing for easier and less expensive repairs.
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