فروش عمده astm a479 نزدیک من
A479/A479M Standard Specification for Stainless. 1.1 This specification covers hot- and cold-finished bars of stainless steel, including rounds, squares, and hexagons, and hot-rolled or extruded shapes such as angles, tees, and channels for use in boiler and pressure vessel construction.There are standards covering high nickel, chromium, austenitic corrosion, …