... 4.Quality Assurance 5.Test:chemical composition,tensile Mine water pump Body.1 Material: Grey iron GJS450-10Standard: ASTM, ... range: pipes and its fittings, grating, frame, manhole covers, pump parts, handwheel, valve, flange, bollard, pilingaccessories, counterweight iron, ... machinery parts and other industry machinery parts The QB series pumps are highly efficient electric pumps suitable for clean ...