... is controlled by CCD chip and MCU min chip and to PWM signal. Fast speed, stability and good control. Main machine, ... -corrosion, long life. Drip Irrigation Tube Application:Lt’s suitable to arid, half arid area climatic conditions, such as, Xingjian, ... Qinghai, Xizang, Neimeng, Shanxi etc. Apply to green house, various of crops, Orchard, vineyard, cotton etc. field ...