往复式活塞泵 [机] reciprocating piston pump

往复式泵 reciprocating pump

往复式深井泵 borehole reciprocating pump

立式往复泵 vertical reciprocation pump

往复式隔膜泵 reciprocating diaphragm pump

往复式井下泵 borehole reciprocating pump

往复式给水泵 reciprocal feed pump

往复式双缸泵 reciprocating duplex pump

往复式冷油泵 reciprocating cold oil pump

往复式热油泵 reciprocating hot oil pump