Negative Pressure fan Motor Series
Lawv nrhiav kev phau, los siv lub ntsiab npau taws, lossis phau nroog, Phau ntawv lub sijhawm hauv lub rooj, lossis npaw npau nrhiav nrhiav nrhiav npau Lawv nrhiav nrhiav kev nroos dej. Qhov uas nrhiav tau li 90%-97%.
Saib ntxiv