The portable fuel pump come in two types: two gears with external teeth or one gear with external teeth within another with internal teeth.
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2016年10月21日星期五
external gear pump are precision machines
external gear pump rely on two meshing gears to cause liquid flow. They are precision machines with extremely tight fits and tolerances, and are capable of working against high differential pressures.
The portable fuel pump come in two types: two gears with external teeth or one gear with external teeth within another with internal teeth.
The portable fuel pump come in two types: two gears with external teeth or one gear with external teeth within another with internal teeth.
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