ASME SFA-5.12 # [3 V* s% g! i0 i2 m用于弧焊和切断的钨和钨合金电极规范 r- V% p- J- ^0 {; f+ H
Specification for Tungsten and Tungsten-Alloy Electrodes for Arc Welding and Cutting / t3 `" d( a: b6 Q: P x; [3 G1 f/ V+ M
ISO 6848:2004 specifies requirements for classification of nonconsumable tungsten electrodes for inert gas shielded arc welding, and for plasma welding