Fiber glass / stainless steel lance+plastic nozzle+plastic switch 1. Pressure control valve is available to choose. Sprayer purpose: 1.The sprayer is suitable for agriculture, garden, public disinfection. 2.It is widely applied for pesticide control of foodstuff, cotton, vegetables and orchard as well as environment sanitization and epidemic prevention of publics, hotels, stations and feeding site of poultries and livestock. Patent inssued certification 16l-18l