قیمت پایین astm a479 سفارشی سازی نمونه
ASTM A479/A479M-23. ... en-US Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels Standard A479/A479M Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels> new BOS Vol. 01.03 Committee A01 ...