1. Valve: electric butterfly valve, electric blinds valves,
pneumatic pusher butterfly (with pneumatic device) explosion-proof
electric ball valve 2. 3. The three-way valve and fan-shaped solid
material valve: electric hydraulic tee dosing valve, electric
hydraulic Stone dosing valve, electric hydraulic fan valve,
electric dosing valve, electric air lock feeder, electric hydraulic
plate valve (electrically charged liquid putter), electric-way flat
gate (with electric putter), pneumatic flat valve (with pneumatic
device) 4. cement silo bottom discharge valve
