... c, Obtained patents d, 20 year fade warranty 1) exterior wall panels designsextruded under high temperature and pressure ,whose main material ( ... ,dyestuff and so on . 2) More paramerers of exterior wall panels designsSize:163*21mm,196*26mm, 175*23 etcLength:2 ... nail,beatiful 3) Features:Dimension stabilitylength and widthEnergy-saving decorative wall covering panelswill not be out of shape after a ...