... gearbox housings. Pump Parts OEM Pump BodyMaterial:High-ChromiumCast Iron, Ductile Cast IronMaterial Type:Wearresistant, ... CorrosionresistantWeight:1-25tonImpellerMaterial:High-ChromiumCast Iron,Ductile CastIron, Stainless Steel, ... Pump CasingMaterial:High-Chromium Cast Iron,Alloy Steel, etcMaterial Type:Wear-resistantWeight:10-30ton High efficiency Heavy duty ...