污水治理是人居环境与生态环境中不可缺少的一环。水环境在我国绿色生态文明建设中占重要地位。近期印发的《关于全面推进美丽中国建设的意见》中也提到“持续深入打好碧水保卫战”以及“加快补齐城镇污水收集和处理设施短板”等内容。在人们的日常生活中，处处离不开对水资源的利用，进而产生大量的废水污水，并伴随着待解决的水污染问题。近几年随着我国经济发展提升以及对于城乡环境水平的重视加深，对水资源的利用以及产生的污水也与日俱增。近五年全国污水排放量持续上升，到2022年已达638.97亿立方米；而全国污水处理总量也同样随着持续上升，到2022年达626.89亿立方米。与此相对应的，全国污水处理厂数量及处理能力也在近五年持续增加，到2022年全国纳入统计的共13527座污水处理厂，一共可达到每日3.16亿吨的污水处理能力。但在城市与乡镇之间存在着较大的分化差异，城市地区的污水处理能力及污水处理率都远高于乡镇地区。

机械设备板块整体业绩：机械设备行业2023年处于“底部筑底，复苏在 即”阶段，随着库存触底，下游需求逐渐回暖，行业景气度将逐渐回升。剔除ST股、B股、北交所等相关个股，申万（2021）机械设备517家上市企业中，246家企业披露中报业绩预告，占比47.58%。其中，140家企业预计 2023年业绩实现增长，占比56.91%。

Landing strings equipment are heavy-duty thick wall drill pipes, which are used for oil and gas well drilling purposes in offshore areas. These are also used for landing heavy equipment on the seabed and landing heavy casing strings in wells. In subsea wells, landing strings allow well intervention or completion activities to be performed safely from floating vessels by interfacing with the subsea wellhead on the seabed. Landing strings are thick-walled steel tubes that are used to connect offshore drilling rig surface equipment with the bottom hole assembly.

Commercial jar blenders are specially designed to blend drinks, including various food items. Many food service establishments are using such appliances for serving different kinds of drinks to customers as well as to blend food items. The demand for such appliances is growing along with the increasing adoption rate. Given the positive prospects of growth, the global commercial jar blender market has been chosen as the market under focus.

Trolleys are used in industrial, airports, hospitality, and other applications to move goods from one place to another. Vendors manufacture different types of trolleys depending on the needs of the target industry.