Pump class
Promulgator
：keler Time：2016-06-16
API API tube pump rod pump cartridge entire length of the plunger pump screw pump long elastic seal preventing air lock plunger pump plunger rod length from the drain anti-sand pump plunger helix long sand pump outlet valve outside Fixed-mounted pump barrel anti-sand pump hoist strong anti-gas pump inclined shaft pump hydraulic feedback pump heavy oil pump efficiency
