... & preservation · Anti-impact, Anti-seismic · Save area, Easy installation · Strong and durable, 40-50 years life span 4.Vanjoin ... etc 4. We send you the installation guide , installation video , also we can sending engineer to guide installation at site . 9. What should ... Confirm the design , pay for money , recieve the goods , installation , then to live in . Weave your dream &Buid our homeland ...