1.Demonstrates high quality 2.With price-to-quality ratio 3.Long life span 4.No-radiation, no-toxicity 5 ... smooth(Peeled),Brush, Mill, Pickled etc 6. Application: Machine-made industry, chemical industry, shipping industry architecture, food ... chemical, petroleum, boilers, nuclear, energy, construction field, ships building industry, war and electricity industry, boiler heat exchanger, machiner ...