Alaska Rubbers Pvt. Ltd. Manufactures Polyethylene made Elevator Bucket. Alaska Rubbers Pvt. Ltd. Is an ISO 9001 certified company. The Polyethylene made Elevator Bucket is designed at a 45-degree discharge angle, and can be spaced closer on a belt giving a clean superior discharge. This bucket is lightweight and tapered for easy shipping and storage. The most common applications of Polyethylene made Elevator Bucket include grain, wheat, corn, flour, sugar, and other agricultural applications.