Performs are an important part of the manufacturing process for many products. They are typically made from plastic and are used to create the shape of the final product. Preforms can be injection molded, extruded, or otherwise formed into the desired shape. Testing defects in a preform bottle is important because it can help to identify problems with the manufacturing process. Defects can cause problems with the final product, such as poor appearance, dimensional inaccuracies, or functional issues. Testing can help to identify these defects so that they can be corrected. you can easily make the use of preform defect chart. It provides you with an accurate visual assessment of defects found in products under natural and polarized light. If you want to know more about this lab equipment then you can give a call at  +91 9210903903 or email at info@prestogroup.com. The team of technical experts at Presto will easily consult you regarding all your needs and queries.