2017年以来,低温液体市场价格走出了一波先抑后扬、快速拉高的行情,液氧从年初的450-500元/吨,到7月下旬的1100元/吨,上涨幅度高达200%以上;液氩从年初的500元/吨,上涨到7月份的3000元/吨,上涨幅度最大,最为惊人;液氮价格上涨幅度最小,从年初的500元/吨,到7月份为800元/吨,见图1-图3,图中数据为卓创监测提供的全国平均 Since 2017, the market price of cryogenic liquid has stepped out of the market of first-mover, second-mover and second-hand elevator. The liquid oxygen price increased from 450-500 yuan / ton at the beginning of this year to 1,100 yuan / ton in late July, up by 200% Above; liquid argon from the beginning of 500 yuan / ton, up to July 3000 yuan / ton, the largest increase, the most alarming; liquid nitrogen price increases the smallest, from 500 yuan / ton at the beginning of the year to 800 yuan in July / T, see Figure 1-3, the figure data for the Zhuozhuang monitoring provided by the national average