We buy complete injection molds of 18000 Evaporative cooler shell including lid (top cover), pillar,fan tube,water distributer, side underbed and under pan from mold maker have real experience of this kind of cooler.You could refer to the attached photos and quote us the molds.Please send your reference of the cooler molds you have done before to study your background first.Please send photos from the cooler mold and 3D you have done before in your mail because we don't consider who has no any experience of making molds for cooler shell up to now.