The quality of our products is unquestionable. Our products meet AS2047, NFRC, CE standard and also we will make our product tested and certificated if you required. We offer 5 years quality warranty. For the packaging methods, we choose suitable package and reinforce for the selected quantity when loading and transport. And single package size is 250X100X100 cm, single gross weight is 45.000 kg. If you have any further questions about this product, please don’t hesitate to contact us. https://www.shaiyia.com/