Commercial Exterior Wall Cladding — WPC Great Wall Board This First Generation commercial-grade WPC board (profile 219x26mm, Four-peak structure, concave and convex three-dimensional) is engineered for exterior building walls, feature facades and commercial landscaping walls. As part of our first-generation exterior wall panel range, it is produced from wood plastic composite with its four-peak concave and convex three-dimensional profile. The snap tongue-and-groove design