IR Short-wave Pass Filter is a Cut-off Filter whose switching wavelength is located in the infrared region, allowing the light on one side of the switching wavelength to pass through and the light on the other side to cut off.
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Gear pump type introduction
Gear pump type according to the nature of liquid can be divided into: (1) water pump (B type, D type, sh type) for the transport of water and physical and chemical properties similar to water, cleaning fluid. (2) corrosion-resistant pump (F-type) used to transport acid, alkali and other corrosive liquids. (3) Oil pump (Y type) is used to transport petroleum products.