backing welding

短語詞組

短語

• external backing welding 外焊根焊
• flux copper backing welding 銅板墊單面潛弧焊
• brick backing welding 磚形襯墊單面焊
• flux asbesto backing welding 石棉墊單面潛弧焊
• backing welding electrode 底層焊條
• flux coppor backing welding 銅板墊單面潛弧焊接
• Ceramic backing welding 陶質(zhì)襯墊焊
• flux asbestos backing welding 石綿墊單面潛弧焊
• welding backing 焊接襯墊
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