nd lowest price1. Assessed by third party, national patents and CE, ISO for all equipment,? .2. For our machine, we do very well on HVLS large diameter ceiling fans.Contact Below:Suzhou Optimal Machinery Co.,Ltd.Add:75#,Jiangpu Road,Suzhou Industrial Park,Suzhou City,China(Post Code：215126)Contact us:Joy Wong?Mob/what's app:+86-18861122683Email: wangjing@optfan.com