ASME SFA-5.12 9 w; c) {$ ~7 p用于弧焊和切断的钨和钨合金电极规范 8 a1 H+ u# Z7 XSpecification for Tungsten and Tungsten-Alloy Electrodes for Arc Welding and Cutting 7 ]+ x9 b3 k* H! I! ]2 l& A2 S7 B! R" W6 {+ W U
ISO 6848:2004 specifies requirements for classification of nonconsumable tungsten electrodes for inert gas shielded arc welding, and for plasma welding