SR EN 10378
SR EN 10378 (Welded stainless steel square and rectangular tubes for mechanical and structural engineering and decorative use - Technical delivery conditions)· ASRO (ルーマニア) · 46 材料
SR EN 10378 (Welded stainless steel square and rectangular tubes for mechanical and structural engineering and decorative use - Technical delivery conditions)· ASRO (ルーマニア) · 46 材料