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1969年,美国的焊接材料,焊机和焊接用气体的总营业额为9.65亿美元。比1968年大约增长3300万美元。在这9.65亿美元中,焊接用气体几乎占4.11亿美元,其中焊接用氧为为1.68亿美元,占19%。据美国219家乙炔制造厂的报告数值,1969年制造了乙炔大约140亿呎~3,约值1.28亿美元。又据69家氩气厂的统计,从大气中共分离出28.4亿呎~3的氩,约值1.54亿美元,而其中60%是焊接用氩。在焊接界中,对于重要性越来越大的焊接用气体二氧化碳,
In 1969, the total turnover of welding materials, welders and welding gases in the United States was 965 million U.S. dollars. An increase of about 33 million U.S. dollars over 1968. Of the $ 965 million, welding gas accounted for almost $ 411 million, of which welding oxygen was $ 168 million, or 19%. According to the report of 219 American acetylene factories, acetylene was manufactured in 1969, about 14 billion cubic feet ~ 3, about 128 million U.S. dollars. According to the statistics of 69 argon plants, a total of 2.84 billion sf ~ 3 argon was separated from the atmosphere, about 154 million USD, of which 60% was argon for welding. In the welding community, for the increasing importance of welding gas carbon dioxide,