steel backing copper bush的意思|示意
美 / /
英 / /
钢衬铜衬套
steel backing copper bush的网络常见释义
钢背铜套 ... flux copper backing welding 铜板垫单面潜弧焊 Light Entering and Copper Backing 光进铜退 steel backing copper bush 钢背铜套 ...