美国ASTM/AISI合金结构钢板,钢棒,钢管: 4140,4145,4130,4135,4118,4340, 3316,A3145,8640,8620,
4320,4347,E3310,1513,1024,1330,1335,1340,1345,1052,5115,5120,5130,5132,5135,5140,5147,5145,5150,5154,6150等
钢板厚度：3 mm -500mm 宽厚1500 mm--3000 mm 长度6000 mm-12000 mm
钢棒直径：2 mm-800 mm 长度6000 mm
钢管：外径∮20 mm-∮520 mm 壁厚 1 mm-40 mm 长度6000 mm
