GB/T 3880.2
GB/T 3880.2 (Wrought aluminium and aluminium alloy plates, sheets and strips for general engineering - Part 2: Mechanical properties)· GB (Китай) · 97 материалов
GB/T 3880.2 (Wrought aluminium and aluminium alloy plates, sheets and strips for general engineering - Part 2: Mechanical properties)· GB (Китай) · 97 материалов