
COPPER ALLOY INGOTS, BRASS (YELLOW, HIGH STRENGTH) MANGANESE AND MANGANESE ALUMINUM BRONZE (FOR REMELTING)
出版:US Military Specs/Standards/Handbooks

專家解讀視頻
COPPER ALLOY INGOTS, BRASS (YELLOW, HIGH STRENGTH) MANGANESE AND MANGANESE ALUMINUM BRONZE (FOR REMELTING)
出版:US Military Specs/Standards/Handbooks
專家解讀視頻