continue on to further improve, to make sure product top quality in line with market and consumer standard requirements. Our firm has a excellent assurance program have already been established for Vietnam Asphalt Shingles, Asphalt Bitumen Shingles , Asphalt Roof Laminated , Asphalt Roof Shingle ,Red Roofing Shingles . For further information, please do not hesitate to contact us. All inquiries from you will be highly appreciated. The product will supply to all over the world, such as Europe, America, Australia,Hungary, Jakarta,Holland, Swiss.Our company regards "reasonable prices, high quality,efficient production time and good after-sales service" as our tenet. We hope to cooperate with more customers for mutual development and benefits in future. Welcome to contact us.