Customer Situation: The customer used an AC resistance welder initially, causing the welded joints to rust easily after welding. This shortened the lifespan of the hanging board. Additionally, the welding process required welding consumables, leading to high labor costs. read more: https://heron-welder.com/clinching-machine-for-air-conditioner-hanging-board/ https://heron-welder.com/clinching-machine-for-air-conditioner-hanging-board/