4 sets in stock; Manufactured according to latest API Standard; Honghua ... why do grinding on the mud pump, the following reasons:1. Done grinding process on mud pump, when running, performance ... , Baoji, tiger rig, will do this process.2. A new CNC grinding machine which made in German is at least ... box size(for square parts package):2000*500*350mm5. N.W: 17.5KG6. G.W: 18.5KG mud pump,F-1000,New arrival ...