In the past, the bombs were mostly made into kitchen knives, which had only limited use, and furthermore could last for decades, "so the market demand was likely to fall in the long run," Wu says.
過去砲彈製刀以菜刀為主，只能進駐一般家庭，「而且一把刀可用幾十年，市場需求量可能會降低」，他說。