... products,4,5,6 inch cast iron sumersible deep well pump, cast iron pump and motor casing, cast iron impeller, more durable than stainless ... well water lifting2. water supply, drain system of industrial and civil building3. the hill, mountain areas' water diversion, ... 4. Simple using and maintenance. 5. Safe and reliable operation, no pollution to water, etc. 125mm 2hp cast iron submersible bore well ...