Hand brush filter material is carbon steel for body with high strength, hardness and toughness. Filter adopts stainless steel double-layer reticulated structure, durable, has the advanced structure, small flow resistance, sewage is convenient wait for a characteristic, is widely used for steam, air, water, oil and other medium in the pipeline; Protect the pipeline system all sorts of equipment, pumps, valves, etc.; From pipeline with, rust, slag and other impurities.