It seems like you are referring to a specific type of non-woven bag: a laminated box bag with a weight of 0.25 kg. Laminated box bags are sturdy and durable bags made from non-woven polypropylene fabric that is coated or laminated to enhance its strength and water resistance. These bags are commonly used for shopping, promotional events, and as reusable packaging solutions.
The weight of 0.25 kg likely indicates the weight of the bag itself. Non-woven bags are lightweight yet strong, making them ideal for various purposes. If you have any specific questions or if you need more detailed information about laminated box bags or non-woven bags of this type, please feel free to ask!