Shandong Yiyijia Air Conditioning Equipment Co., Ltd. is a professional manufacturer of glass-fiber reinforced plastic water tanks, enamel water tanks, buried water tanks, stainless steel water tanks, galvanized water tanks, BDF integrated pump water tanks, modular water tanks, exhaust fans, fire dampers, fan boxes, galvanized ducts, stainless steel ducts, air inlets, silencers, static pressure boxes, axial fans, air conditioning fans, and roof fans. The company integrates research and develo...