Below is a list of Blow Molded Containers manufacturers from Richmond Hill, Ontario. Blow molded containers are hollow plastic bottles, jars and tanks that have thin, strong walls. They are very inexpensive to produce because the plastic may be stretched thin without the risk of cracking. These containers hold a wide range of substances due to their corrosion resistance, including liquids, pastes and gels like water, gasoline, cleaning chemicals, cosmetics and foods and beverages like milk and peanut butter.