The company always adheres to use high quality material from raw material to fittings' material and purchased a set of advanced testing equipments to ensure the quality of all the products.Meamwhile we set up a perfect quality ensurance system,obtained ISO9001-2000 quality system certificate and GB/T 5237.1 - 5237.5-2000 product quality certificate."DaMing Aluminium Material"not only gained user's trust but also approved and recommanded by the government and authoritative organizations.