Hot taps or weld built-ups什么意思? Welding processes covered by this standard include shielded metal arc welding (SMAW); gas tungsten arc welding (GTAW); and submerged arc welding (SAW). Almost all types of weld configurations are included. Some specific exceptions include hot taps or weld build-ups. 请问: hot taps or weld build-ups.是什么意思哈,查看更多5个回答 . 4人已关注