... time to improveII. Structure explanationPNJ, PNJFA-plastic pump parts and components are the main body, covered pump, ... or packing seals,etc.Pump body, covered pump, bracket and so on, made of cast iron with ... framework To wear rubber acid, wear rubber. Bracket for the level of opening. Two pump can ... degree.Ⅲ、start up:⑴thin oil bearing lubrication, oil bracket should check the oil level of the room ...