工业气体周度跟踪：氧氮价格周度略有下滑，有望随需求复苏逐步回升

Investment Rating - The report assigns an "Accumulate" rating for the mechanical industry, consistent with the previous rating [1]. Core Viewpoints - The prices of major gases such as oxygen and nitrogen have slightly declined week-on-week but are expected to gradually recover with the anticipated revival in downstream demand due to national economic policies [2][3]. - The report highlights that the prices of rare gases are expected to remain relatively stable, while major gas prices are projected to gradually rebound [3]. Summary by Relevant Sections Major Gas Prices - Oxygen price as of November 9 is 422.1 RMB/ton, with a weekly decline of 0.9%, monthly increase of 10.6%, and annual decrease of 2.7% [5]. - Nitrogen price is 440.7 RMB/ton, with a weekly decline of 1.2%, monthly increase of 6.9%, and annual decrease of 11.8% [5]. - Argon price is 661.7 RMB/ton, with a weekly increase of 0.2%, monthly increase of 13.2%, and annual decrease of 45.8% [5]. Rare Gas Prices - Neon price is 115 RMB/m³, with no weekly change, a monthly decrease of 4.2%, and an annual decrease of 47.7% [5]. - Krypton price is 330 RMB/m³, stable week-on-week, with an annual increase of 45.0% [5]. - Xenon price is 29,500 RMB/m³, stable week-on-week, with a monthly decrease of 3.3% and an annual decrease of 46.8% [5]. - Helium price for a 40L bottle is 633.5 RMB/bottle, stable week-on-week, with a monthly decrease of 0.6% and an annual decrease of 44.9% [5]. Investment Recommendations - Recommended stocks include Hangzhou Oxygen, Shaanxi Blower, with beneficiary stocks being Huate Gas, Qiaoyuan Co., Guanggang Gas, and others [3][4].