If you are a PET jars manufacturer, then you can partner with us to buy semi-finished product to use in your production process. The jar preform supplied is used to produce PET (polyethylene terephthalate) jars. The preforms are fed into blow molding machine to transform them into jars through the stretch blow molding process. The preforms are heated and stretched until they come in their final shape of jars. All these preforms are manufactured by injection molding process. Companies can buy from us these preforms in different sizes to efficiently and cost-effectively mass produce PET jars that are lightweight, high-quality and durable.