India’s Top Manufacturers of Bottle Testing Instruments. Presto Bottle Testing Instruments are made with the highest precision and accuracy that will easily surpass the expectations of our customers. With 40 years of experience in serving quality lab testing instruments to customers, Presto has become Asia’s Premier PET & Preform lab testing instruments manufacturer. From testing the effectiveness, and durability to ensuring the quality of the products, manufacturers of the bottle manufacturing industry can easily fulfill their needs of accurate testing by using Presto quality testing equipment. Contact Us - +91-9210903903.