Commercial Synthetic Chinese Roof Coping Supplies Weatherproof PVC/PP Polymer Ridge & Eaves Modules for Fence & Wall Tops Simplify large-scale perimeter finishing with our commercial-grade synthetic Chinese roof coping supplies – weatherproof ridge and eaves modules engineered for fence and wall top applications. These PVC/PP polymer components offer a practical alternative to traditional clay coping, combining the authentic curved silhouette of Chinese roof ridges with the