ÖNORM EN 10378
ÖNORM EN 10378 (Welded stainless steel square and rectangular tubes for mechanical and structural engineering and decorative use - Technical delivery conditions)· ONORM (奥地利) · 46 种材料
ÖNORM EN 10378 (Welded stainless steel square and rectangular tubes for mechanical and structural engineering and decorative use - Technical delivery conditions)· ONORM (奥地利) · 46 种材料