... /h, Speed:870~3500r/min, Pressure:490~1800Pa, Shipbuilding temporary supply fan for shipyard use Draft fan:Weight:25~352kg,Volume ... structure is made of aluminum alloy and carefully balanced by static and dynamic ways. Both the machine casing and the inlet are made of ... ,Jiushui Road,Licang District,Qingdao,Shandong province,China Shipbuilding temporary supply fan