Any handheld pda devices factories instead of trading companies recommended?

Working Principle of automatic backwashing filter 1.The internal structure of the fully automatic backwashing filter is composed of pig hair brush or stainless steel wire brush and stainless steel filter screen and transmission parts,There are transmission motors and electric valves to automatically complete cleaning and sewage discharge,The operation mode is automatic (manual operation is also possible ),The equipment has the dual function of differential pressure and automatic discharge from time to time.The automation part uses the most advanced and reliable PLC programmable controller in the world today.When the water flows through the filter,The mechanical impurities in the water are intercepted by the filter,When the impurities accumulated on the surface of the filter screen increase, the pressure difference reaches 0.04MPa,The development of differential pressure signals,At the same time, PLC issued instructions,Drive Motor start,Open the sewage valve,Impurities deposited in the filter are brushed down

Product innovation is the soul of BATL. Welcome to visit our factory! The Excellent Manufacturer in the Manufacturing Computer Hardware Tablet PC Industry Focused on the Production of handheld pda for Years handheld devices is more competitive than other products in the same category, as shown in the following aspects. Bright Alliance Technology Limited is dedicated to providing professional, efficient and economical solutions for customers, so as to meet their needs to the greatest extent.

What about the water pump leaves of the homemade fish pond filter?