Free Samples: Try Before You Bulk Buy We are pleased to offer free samples for your review before you purchase bulk. If the quality of the samples you approved does not match the order you placed, we guarantee a refund. Here are three ways to request free samples from us: 1. Fill out a form on our website …
Both bottle neck finish and cap size follow and use a uniform standard and convention to describe their screw thread sizes and styles. This standard was developed by the Glass Packaging Institute (GPI) and the Plastics Industry Association (SPI). Understand Two Numbers: The screw thread sizes and styles are usually represented by two numbers: The two pictures above …