
Copper Alloy Ingots, Brass (yellow, High Strength) Manganese And Manganese Aluminum Bronze (for Remelting)
出版:US Military Specs/Standards/Handbooks

专家解读视频
Copper Alloy Ingots, Brass (yellow, High Strength) Manganese And Manganese Aluminum Bronze (for Remelting)
出版:US Military Specs/Standards/Handbooks
专家解读视频