... -2NM Products Chracteristic 1, smart shape, perform reliably, brass gear, PPO parts, large output torque, long product life. ... accurate position, avoid gear and switch. 3, Multi-assembling, easy to install. 4, Float ball structure, no leakage, especially ... 2, HVAC and fire work. 3, Water equipment, uto-controlwatersystem, industrial mini-auto equipment 4, Irragation equipment, drinking water equipment ...