4 - 72c Centrifugal Waterproof Smoke Exhaust Ventilating Fan

4 - 72c Centrifugal Waterproof Smoke Exhaust Ventilating Fan. Waterproof Centrifugal Design: 4-72C centrifugal fan with waterproof structure for smoke exhaust applications. Multiple Certification Standards: Certified with UR, CE, CCC, ISO9001, RoHS, and SGS for global compliance. OEM Logo Service: Accepts custom high-resolution JPG logos with max two colors and no gradients. Flexible Payment Options: Supports TT, LC, Western Union, and PayPal for secure transactions. Fast Sample Delivery: Sample orders delivered within 3-5 working days from factory. High Monthly Capacity: Monthly production capacity reaches 500-3000 pieces for most models. Durable Material Construction: Constructed with FRP/GRP material and cast iron blades for longevity.