backing welding
短語詞組
- external backing welding 外銲根銲
- flux copper backing welding 銅板墊單麪潛弧銲
- brick backing welding 甎形襯墊單麪銲
- flux asbesto backing welding 石棉墊單麪潛弧銲
- backing welding electrode 底層銲條
- flux coppor backing welding 銅板墊單麪潛弧銲接
- Ceramic backing welding 陶質襯墊銲
- flux asbestos backing welding 石緜墊單麪潛弧銲
- welding backing 銲接襯墊 返回 backing welding