1:over 20 years spray nozzle professional manufacturing experience 2:good skilled engineer to design and provide professional advice for your spray nozzle choice 3:samples provide before order 4:7*24 hours sales service (+008613925573754(whatsapp/wechat are availble ) email:info at dgjtc.com 5:real true raw material and high precision flow rate manufacturing ,each one piece spray nozzle tested before delivery . 6:competitive price and fast delivery