一般铝板的 left over 很难找到便宜的。因为多大的 leftover 都会有用处，肯贱卖的很少，起码接触过铝板的就会知道。而且厚度也是个考虑参数。可能最简单粗暴的办法，就算 retail store 买个就近大的板，回家自己 cut。
-troyd(Troy);
2021-2-27(#13544712@0)
wholesaler 一般卖的都是 4 FT X 10 FT 一整张的。
-troyd(Troy);
2021-2-27(#13544717@0)+1
如果你可以用其它尺寸的话这家挺好的。它卖得便宜。配件很齐全。它的extruded有20mm x 20mm,
-spz(spz);
2021-2-27{186}(#13544895@0)
20mm x 40mm, 30mm x 30mm, 45mm x 45mm, 1” x 1”, 1” x 2”, 1” x 3”, 2” x2”, 2” x 4”, 1.5” x 0.75”, 1.5” x 1.5”, 1.5” x 3”, 1.5” x 4.5”, 1.5” x 6”, 3” x 3”, 3” x 6”.
If you are located in the States, McMaster Carr is the best and probably has the most complete hardware inventory I’ve ever seen. I bought from there once for stuff I couldn’t get in Canada.
-spz(spz);
2021-2-28(#13545114@0)