I need to purchase 6 units of 4-inch water pumps. The pumps must be diesel-powered with electric start and semi-trash capability, suitable for salt water applications. The impeller should be made of aluminum, and the housing should preferably be aluminum or stainless steel. My budget is up to $450 per unit. Please provide your best offer.

We require 15 units of customized cement plant models with 3ft x 4ft dimensions. The model must be constructed using polycarbonate, brass, copper and aluminum materials, featuring both movable components (12V/24V electric motor for kiln rotation) and fixed structures.

Key requirements include:
- Teakwood-covered plywood base displaying plant equipment and infrastructure
- Detailed representation of roads, green areas, mining sites and gates
- Surface finishing with acrylic paint
- PVC sticker markings
- Protective transparent acrylic cover

Please provide FOB rates for Bhavnagar port (India) with separate bank charge allocation. Include complete technical specifications, catalog details and import compliance guidelines for our country. Priority will be given to suppliers capable of demonstrating similar industrial modeling expertise.

Seeking best quotation. Include pricing, availability, warranty, and delivery timeline. Sensor details: Type K, single element; ungrounded measuring junction; standard limits of error; 1/4 inch sheath diameter; 316 stainless steel sheath material; 6 inches probe length; 90 degrees bend angle; 5/8 inch bend radius; 1.5 inches stem length; without adapter transition housing; 306 inches (30.5 feet) lead wire length; 20 AWG stranded lead wire type; PVC coated, ANSI color coded lead wire insulation (–40°F to 221°F); 300 inches (30 feet) flexible conduit length; stainless steel with PVC coating, ANSI colored flexible conduit material; plain leads electrical connection; compression fitting, 1/4 inch tube × 1/2 inch MNPT, 316 stainless steel instrument connection; 1/2 inch MNPT aluminum conduit adapter; calibration report required; laser etching of item/serial number; panel mounted readout set at 190°F rising. Quantity: 2 units.