In order to reduce the disturbance energy loss in the process of inlet diversion and outlet jet flow of parallel fan station. taking the parallel connection of two fans as an example. a high-efficiency and low resistance parallel station structure improvement mode is proposed. and the ventilation efficiency and local resistance coefficient formulas of the fan station are deduced based... https://www.bekindtopets.com/limited-offer-Silver-Lining-Herbs-Kidney-Support-super-offer/