M'zaka zaposachedwa, makina opangira madzi a China akukula mofulumira, osati kuchuluka kwa kupanga valavu yapampu kwakhala bwino kwambiri, zotsatira zake zakhala zikuwonjezeka kwambiri. Kukula kochulukirapo, kumawerengera gawo lalikulu.Koma bizinesi yayikulu yapampu yamagetsi ndiyocheperako, mtundu wamakampani apampu apanyumba siwolimba, mpikisano wamsika ndiwosauka. Pampu ndi valavu makampani pawokha akukumana ndi chiopsezo kutsekereza m'mbuyo kupanga mphamvu.Pampu makampani akukula mofulumira, osati pampu valavu kupanga mlingo wakhala bwino kwambiri, kutulutsa kwake kwawonjezeka kwambiri.Koma zochititsa manyazi kwambiri, zazing'ono ndi zapakatikati- kukula ndi payekha pampu valavu mabizinesi mu ndondomeko kukula kwambiri, ndi nkhani yaikulu proportion.But lalikulu mpope valavu ogwira ntchito yochepa, zoweta mpope valave industry brand si yamphamvu, mpikisano wamsika ndi wosauka.Kutengera momwe chitukuko cha makina a pompu ndi ma valve, makina a pampu ndi ma valve okha akukumana ndi chiopsezo chotseka.