... chemicals. The Big Bags are made from thick woven polypropylene, either coated or uncoated. They are designed to efficiently transport volumes ranging from 500 to 3000 liters, with a cubic capacity of up to 3000 kg. Bag Sewing Europe offers you the most reliable sewing machines for manufacturing Big Bags. Please contact us for any Newlong & Union Special sewing machines, parts, and needles.