
Steel, Carbon, Hot-rolled Or Forged (blooms, Billets, & Slabs For Reforging)
出版:US Military Specs/Standards/Handbooks

專家解讀視頻
Steel, Carbon, Hot-rolled Or Forged (blooms, Billets, & Slabs For Reforging)
出版:US Military Specs/Standards/Handbooks
專家解讀視頻