玉足软肉夹住摩擦_欧洲人体超大胆露私视频_天天躁夜夜躁狠狠躁2024_激情四射床戏

Integrated equipment, consisting of a centralized temperature sensing control system, heating fan, and stabilizing circulation equipment, with fuzzy control, automatically adds and unloads according to the ambient temperature to achieve the required temperature at the wellhead. Automated control, fully automatic operation, complete protection devices, safe and stable long-term operation in cold areas, and can be used in conjunction with various heat sources.