Modules is the main component and important accessory of mud pumps.With higher pressure and pum no down demands,Hongbo develops and improves modules manufacturing from materials selected and processing improved.HB adopts the advanced techniques and CNC Machining Center which combine the technique of drilling ,milling and tapping in the processing of inside.CNC machined eaterior and clean jewelry reflects the superior inside quality of modules.Not only this,but also the strict Nondestructive Examination is performed for ensuring no internal flaw.