求助，这是要的哪种铝啊？？？
在加拿大 We want to source 3000 serie aluminium billet. Dimension: Standard lengh 7 inch / 600 mm Diameter 7 in. (178 mm): + 0.02 - 0.04 in. (+ 0.5 mm - 1.0 mm) Weight: 40kg Volume 3000 t/year 求各位大神指导，不胜感激...华人论坛
在加拿大 We want to source 3000 serie aluminium billet. Dimension: Standard lengh 7 inch / 600 mm Diameter 7 in. (178 mm): + 0.02 - 0.04 in. (+ 0.5 mm - 1.0 mm) Weight: 40kg Volume 3000 t/year 求各位大神指导，不胜感激...华人论坛