We are the manufacturers of air dust and water tanks. I am from Shandong Air Conditioning Equipment Co., Ltd. in China. Our main products include water tanks, GRP, FRP SMC, and stainless steel water tanks. We are looking for partners who are interested in related products, so you can avoid middlemen and earn the profit yourself. Email: [email protected] Phone/wechat: +8613205344982... https://www.wannengwt.com/air-duct/