Truck Tirpal Manufacturer in Kathmandu, Truck Tirpal Supplier in Kathmandu, Truck Tirpal in Kathmandu, Truck Tirpal Price in Kathmandu. Truck Tirpal With best manufacturing facilities, we are able to export the best quality Tirpal sheets across the globe. Tirpal sheets are used for various purposes. A Tirpal, is a large sheet of strong, flexible, water-resistant or waterproof material made of HDPE.