SFS EN 10378
SFS EN 10378 (Welded stainless steel square and rectangular tubes for mechanical and structural engineering and decorative use - Technical delivery conditions)· SFS (フィンランド) · 46 材料
SFS EN 10378 (Welded stainless steel square and rectangular tubes for mechanical and structural engineering and decorative use - Technical delivery conditions)· SFS (フィンランド) · 46 材料