... . 2.Its strength may be adjusted to the request of customer (from 450Mpa to 650Mpa).3.Its surface is smoothness, no ... , drilled, coated, sandwiched glue etc.Products Usage:Wind screen of airplane, train, and highquality car or boat.High grade construction ... glass.Optical instrumental cover.Surface board of copier, scanner and domestic electrical applianceCup, fish tank and ...