We are the manufacturers of 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 Whatsapp: +... https://www.wannengwt.com/smoke-vents/