Micro-pump: usually to enhance the liquid, liquid delivery or to increase the pressure on the liquid that is, the mechanical energy of the prime mover into liquid energy to achieve the purpose of pumping liquid machine referred to as the pump. The general form of the pump for the drive part + pump body, the pump body has one into and out of two interfaces, water from the inlet into the drainage outlet, usually using this form, and compact, pocket pump, called the micro-pump . From the volume point of view: miniature pump than our common size of the pump is much smaller, mini pump size is the smallest canned Coke bottle size, the largest volume is the size of the bottle Coke; From the weight point of view: the lightest only a few hundred grams, The heaviest also about three kilograms; from the voltage point of view: all are 12V or 24V DC, is also a safe voltage; From the traffic point of view: the smallest flow of only a few liters per minute, the largest of more than one hundred liters per minute; from Pressure up to open: the least pressure on a few Pakistani, the largest on a dozen Pakistani; because of different use, different people's name is not the same. Such as: miniature pumps, miniature pumps, miniature DC pumps, mini self-priming pumps, micro-sampling pumps, micro-sampling pumps, micro-circulation pumps, mini 12V pumps, miniature 24V pumps.