焊接培训-CO 2 气体保护焊 Welding training- CO2 gas shielded welding 9 Dec 2013 高寿丰 Gammon Construction Limited. All Rights Reserved *2004 Gammon Construction Limited. All Rights Reserved CO 2 气体保护焊 22004 Gammon Construction Limited. All Rights Reserved CO 2 气体保护焊 利用CO 2 作为保护气体的气体保护焊，简称CO 2 焊。 CO 2 气体保护焊示意图 32004 Gammon Construction Limited. All Rights Reserved CO 2 气体保护焊焊机 半自动焊接小车 42004 Gammon Construction Limited. All Rights Reserved CO2气体保护焊焊机 全自动焊接小车 52004 Gammon Construction Limited. All Rights Reser
